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Finding the Fourth Proportional to 306,239.69, 459,452.78 and 156,585.10

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Solution

The fourth proportional to 306,239.69, 459,452.78 and 156,585.10 is: 234,925.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,239.69 : 459,452.78 = 156,585.10 : x
  2. Step 2: Convert to fraction form
    306,239.69/459,452.78 = 156,585.10/x
  3. Step 3: Cross multiply
    306,239.69x = 459,452.78 × 156,585.10
  4. Step 4: Simplify right side
    306,239.69x = 71,943,459,501.58
  5. Step 5: Solve for x
    x = 71,943,459,501.58/306,239.69
  6. Step 6: Final answer
    x = 234,925.33

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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.