Home / 243,001.28-364,512.90-74,509.31

Finding the Fourth Proportional to 243,001.28, 364,512.90 and 74,509.31

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Solution

The fourth proportional to 243,001.28, 364,512.90 and 74,509.31 is: 111,767.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,001.28 : 364,512.90 = 74,509.31 : x
  2. Step 2: Convert to fraction form
    243,001.28/364,512.90 = 74,509.31/x
  3. Step 3: Cross multiply
    243,001.28x = 364,512.90 × 74,509.31
  4. Step 4: Simplify right side
    243,001.28x = 27,159,604,665.10
  5. Step 5: Solve for x
    x = 27,159,604,665.10/243,001.28
  6. Step 6: Final answer
    x = 111,767.33

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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.