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Finding the Fourth Proportional to 358,998.81, 538,598.01 and 156,612.62

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Solution

The fourth proportional to 358,998.81, 538,598.01 and 156,612.62 is: 234,962.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,998.81 : 538,598.01 = 156,612.62 : x
  2. Step 2: Convert to fraction form
    358,998.81/538,598.01 = 156,612.62/x
  3. Step 3: Cross multiply
    358,998.81x = 538,598.01 × 156,612.62
  4. Step 4: Simplify right side
    358,998.81x = 84,351,242,779.90
  5. Step 5: Solve for x
    x = 84,351,242,779.90/358,998.81
  6. Step 6: Final answer
    x = 234,962.46

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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.