Home / 288,159.12-431,875.09-146,040.11

Finding the Fourth Proportional to 288,159.12, 431,875.09 and 146,040.11

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Solution

The fourth proportional to 288,159.12, 431,875.09 and 146,040.11 is: 218,875.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,159.12 : 431,875.09 = 146,040.11 : x
  2. Step 2: Convert to fraction form
    288,159.12/431,875.09 = 146,040.11/x
  3. Step 3: Cross multiply
    288,159.12x = 431,875.09 × 146,040.11
  4. Step 4: Simplify right side
    288,159.12x = 63,071,087,721.86
  5. Step 5: Solve for x
    x = 63,071,087,721.86/288,159.12
  6. Step 6: Final answer
    x = 218,875.90

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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.