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Finding the Fourth Proportional to 157,071.40, 235,607.10 and 154,479.40

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Solution

The fourth proportional to 157,071.40, 235,607.10 and 154,479.40 is: 231,719.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,071.40 : 235,607.10 = 154,479.40 : x
  2. Step 2: Convert to fraction form
    157,071.40/235,607.10 = 154,479.40/x
  3. Step 3: Cross multiply
    157,071.40x = 235,607.10 × 154,479.40
  4. Step 4: Simplify right side
    157,071.40x = 36,396,443,443.74
  5. Step 5: Solve for x
    x = 36,396,443,443.74/157,071.40
  6. Step 6: Final answer
    x = 231,719.10

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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.