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Finding the Fourth Proportional to 201,624.20, 302,436.30 and 103,320.20

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Solution

The fourth proportional to 201,624.20, 302,436.30 and 103,320.20 is: 154,980.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,624.20 : 302,436.30 = 103,320.20 : x
  2. Step 2: Convert to fraction form
    201,624.20/302,436.30 = 103,320.20/x
  3. Step 3: Cross multiply
    201,624.20x = 302,436.30 × 103,320.20
  4. Step 4: Simplify right side
    201,624.20x = 31,247,779,003.26
  5. Step 5: Solve for x
    x = 31,247,779,003.26/201,624.20
  6. Step 6: Final answer
    x = 154,980.30

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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.