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Finding the Fourth Proportional to 172,347.92, 257,258.66 and 159,683.12

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Solution

The fourth proportional to 172,347.92, 257,258.66 and 159,683.12 is: 238,354.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,347.92 : 257,258.66 = 159,683.12 : x
  2. Step 2: Convert to fraction form
    172,347.92/257,258.66 = 159,683.12/x
  3. Step 3: Cross multiply
    172,347.92x = 257,258.66 × 159,683.12
  4. Step 4: Simplify right side
    172,347.92x = 41,079,865,475.82
  5. Step 5: Solve for x
    x = 41,079,865,475.82/172,347.92
  6. Step 6: Final answer
    x = 238,354.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.