Home / 389,430.68-583,999.14-136,632.92

Finding the Fourth Proportional to 389,430.68, 583,999.14 and 136,632.92

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Solution

The fourth proportional to 389,430.68, 583,999.14 and 136,632.92 is: 204,897.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,430.68 : 583,999.14 = 136,632.92 : x
  2. Step 2: Convert to fraction form
    389,430.68/583,999.14 = 136,632.92/x
  3. Step 3: Cross multiply
    389,430.68x = 583,999.14 × 136,632.92
  4. Step 4: Simplify right side
    389,430.68x = 79,793,507,775.69
  5. Step 5: Solve for x
    x = 79,793,507,775.69/389,430.68
  6. Step 6: Final answer
    x = 204,897.85

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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.