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Finding the Fourth Proportional to 172,242.96, 237,424.68 and 157,779.60

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Solution

The fourth proportional to 172,242.96, 237,424.68 and 157,779.60 is: 217,487.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,242.96 : 237,424.68 = 157,779.60 : x
  2. Step 2: Convert to fraction form
    172,242.96/237,424.68 = 157,779.60/x
  3. Step 3: Cross multiply
    172,242.96x = 237,424.68 × 157,779.60
  4. Step 4: Simplify right side
    172,242.96x = 37,460,771,040.53
  5. Step 5: Solve for x
    x = 37,460,771,040.53/172,242.96
  6. Step 6: Final answer
    x = 217,487.97

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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.