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Finding the Fourth Proportional to 317,031.98, 437,568.60 and 291,497.88

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Solution

The fourth proportional to 317,031.98, 437,568.60 and 291,497.88 is: 402,326.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,031.98 : 437,568.60 = 291,497.88 : x
  2. Step 2: Convert to fraction form
    317,031.98/437,568.60 = 291,497.88/x
  3. Step 3: Cross multiply
    317,031.98x = 437,568.60 × 291,497.88
  4. Step 4: Simplify right side
    317,031.98x = 127,550,319,254.57
  5. Step 5: Solve for x
    x = 127,550,319,254.57/317,031.98
  6. Step 6: Final answer
    x = 402,326.36

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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.