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Finding the Fourth Proportional to 172,359.40, 257,955.90 and 151,364.20

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Solution

The fourth proportional to 172,359.40, 257,955.90 and 151,364.20 is: 226,534.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,359.40 : 257,955.90 = 151,364.20 : x
  2. Step 2: Convert to fraction form
    172,359.40/257,955.90 = 151,364.20/x
  3. Step 3: Cross multiply
    172,359.40x = 257,955.90 × 151,364.20
  4. Step 4: Simplify right side
    172,359.40x = 39,045,288,438.78
  5. Step 5: Solve for x
    x = 39,045,288,438.78/172,359.40
  6. Step 6: Final answer
    x = 226,534.14

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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.