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Finding the Fourth Proportional to 366,740.28, 506,347.30 and 229,128.69

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Solution

The fourth proportional to 366,740.28, 506,347.30 and 229,128.69 is: 316,351.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,740.28 : 506,347.30 = 229,128.69 : x
  2. Step 2: Convert to fraction form
    366,740.28/506,347.30 = 229,128.69/x
  3. Step 3: Cross multiply
    366,740.28x = 506,347.30 × 229,128.69
  4. Step 4: Simplify right side
    366,740.28x = 116,018,693,534.04
  5. Step 5: Solve for x
    x = 116,018,693,534.04/366,740.28
  6. Step 6: Final answer
    x = 316,351.11

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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.