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Finding the Fourth Proportional to 438,154.72, 604,648.88 and 247,230.24

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Solution

The fourth proportional to 438,154.72, 604,648.88 and 247,230.24 is: 341,175.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,154.72 : 604,648.88 = 247,230.24 : x
  2. Step 2: Convert to fraction form
    438,154.72/604,648.88 = 247,230.24/x
  3. Step 3: Cross multiply
    438,154.72x = 604,648.88 × 247,230.24
  4. Step 4: Simplify right side
    438,154.72x = 149,487,487,718.13
  5. Step 5: Solve for x
    x = 149,487,487,718.13/438,154.72
  6. Step 6: Final answer
    x = 341,175.12

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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.