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Finding the Fourth Proportional to 171,397.50, 257,096.25 and 72,901.50

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Solution

The fourth proportional to 171,397.50, 257,096.25 and 72,901.50 is: 109,352.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,397.50 : 257,096.25 = 72,901.50 : x
  2. Step 2: Convert to fraction form
    171,397.50/257,096.25 = 72,901.50/x
  3. Step 3: Cross multiply
    171,397.50x = 257,096.25 × 72,901.50
  4. Step 4: Simplify right side
    171,397.50x = 18,742,702,269.38
  5. Step 5: Solve for x
    x = 18,742,702,269.38/171,397.50
  6. Step 6: Final answer
    x = 109,352.25

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1.5x scale

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.