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Finding the Fourth Proportional to 437,697.18, 656,282.88 and 171,140.16

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Solution

The fourth proportional to 437,697.18, 656,282.88 and 171,140.16 is: 256,607.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,697.18 : 656,282.88 = 171,140.16 : x
  2. Step 2: Convert to fraction form
    437,697.18/656,282.88 = 171,140.16/x
  3. Step 3: Cross multiply
    437,697.18x = 656,282.88 × 171,140.16
  4. Step 4: Simplify right side
    437,697.18x = 112,316,357,088.46
  5. Step 5: Solve for x
    x = 112,316,357,088.46/437,697.18
  6. Step 6: Final answer
    x = 256,607.45

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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.