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Finding the Fourth Proportional to 316,250.56, 474,373.26 and 129,130.84

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Solution

The fourth proportional to 316,250.56, 474,373.26 and 129,130.84 is: 193,695.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,250.56 : 474,373.26 = 129,130.84 : x
  2. Step 2: Convert to fraction form
    316,250.56/474,373.26 = 129,130.84/x
  3. Step 3: Cross multiply
    316,250.56x = 474,373.26 × 129,130.84
  4. Step 4: Simplify right side
    316,250.56x = 61,256,217,537.34
  5. Step 5: Solve for x
    x = 61,256,217,537.34/316,250.56
  6. Step 6: Final answer
    x = 193,695.21

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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.