Home / 316,278.31-474,417.91-129,289.81

Finding the Fourth Proportional to 316,278.31, 474,417.91 and 129,289.81

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Solution

The fourth proportional to 316,278.31, 474,417.91 and 129,289.81 is: 193,934.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,278.31 : 474,417.91 = 129,289.81 : x
  2. Step 2: Convert to fraction form
    316,278.31/474,417.91 = 129,289.81/x
  3. Step 3: Cross multiply
    316,278.31x = 474,417.91 × 129,289.81
  4. Step 4: Simplify right side
    316,278.31x = 61,337,401,444.50
  5. Step 5: Solve for x
    x = 61,337,401,444.50/316,278.31
  6. Step 6: Final answer
    x = 193,934.90

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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.