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Finding the Fourth Proportional to 301,985.20, 452,977.80 and 202,452.40

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Solution

The fourth proportional to 301,985.20, 452,977.80 and 202,452.40 is: 303,678.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,985.20 : 452,977.80 = 202,452.40 : x
  2. Step 2: Convert to fraction form
    301,985.20/452,977.80 = 202,452.40/x
  3. Step 3: Cross multiply
    301,985.20x = 452,977.80 × 202,452.40
  4. Step 4: Simplify right side
    301,985.20x = 91,706,442,756.72
  5. Step 5: Solve for x
    x = 91,706,442,756.72/301,985.20
  6. Step 6: Final answer
    x = 303,678.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.