Home / 487,977.40-732,086.10-168,134.20

Finding the Fourth Proportional to 487,977.40, 732,086.10 and 168,134.20

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Solution

The fourth proportional to 487,977.40, 732,086.10 and 168,134.20 is: 252,242.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,977.40 : 732,086.10 = 168,134.20 : x
  2. Step 2: Convert to fraction form
    487,977.40/732,086.10 = 168,134.20/x
  3. Step 3: Cross multiply
    487,977.40x = 732,086.10 × 168,134.20
  4. Step 4: Simplify right side
    487,977.40x = 123,088,710,754.62
  5. Step 5: Solve for x
    x = 123,088,710,754.62/487,977.40
  6. Step 6: Final answer
    x = 252,242.65

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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.