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Finding the Fourth Proportional to 291,316.98, 402,024.87 and 163,997.04

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Solution

The fourth proportional to 291,316.98, 402,024.87 and 163,997.04 is: 226,320.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,316.98 : 402,024.87 = 163,997.04 : x
  2. Step 2: Convert to fraction form
    291,316.98/402,024.87 = 163,997.04/x
  3. Step 3: Cross multiply
    291,316.98x = 402,024.87 × 163,997.04
  4. Step 4: Simplify right side
    291,316.98x = 65,930,888,686.38
  5. Step 5: Solve for x
    x = 65,930,888,686.38/291,316.98
  6. Step 6: Final answer
    x = 226,320.10

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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.