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Finding the Fourth Proportional to 201,807.20, 302,710.80 and 192,130.40

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Solution

The fourth proportional to 201,807.20, 302,710.80 and 192,130.40 is: 288,195.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,807.20 : 302,710.80 = 192,130.40 : x
  2. Step 2: Convert to fraction form
    201,807.20/302,710.80 = 192,130.40/x
  3. Step 3: Cross multiply
    201,807.20x = 302,710.80 × 192,130.40
  4. Step 4: Simplify right side
    201,807.20x = 58,159,947,088.32
  5. Step 5: Solve for x
    x = 58,159,947,088.32/201,807.20
  6. Step 6: Final answer
    x = 288,195.60

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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.