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Finding the Fourth Proportional to 303,428.54, 418,717.14 and 174,276.15

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Solution

The fourth proportional to 303,428.54, 418,717.14 and 174,276.15 is: 240,492.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,428.54 : 418,717.14 = 174,276.15 : x
  2. Step 2: Convert to fraction form
    303,428.54/418,717.14 = 174,276.15/x
  3. Step 3: Cross multiply
    303,428.54x = 418,717.14 × 174,276.15
  4. Step 4: Simplify right side
    303,428.54x = 72,972,411,098.21
  5. Step 5: Solve for x
    x = 72,972,411,098.21/303,428.54
  6. Step 6: Final answer
    x = 240,492.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.