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Finding the Fourth Proportional to 325,131.77, 487,066.67 and 239,587.40

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Solution

The fourth proportional to 325,131.77, 487,066.67 and 239,587.40 is: 358,916.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,131.77 : 487,066.67 = 239,587.40 : x
  2. Step 2: Convert to fraction form
    325,131.77/487,066.67 = 239,587.40/x
  3. Step 3: Cross multiply
    325,131.77x = 487,066.67 × 239,587.40
  4. Step 4: Simplify right side
    325,131.77x = 116,695,035,894.02
  5. Step 5: Solve for x
    x = 116,695,035,894.02/325,131.77
  6. Step 6: Final answer
    x = 358,916.13

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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.