Home / 439,210.12-658,808.24-139,686.38

Finding the Fourth Proportional to 439,210.12, 658,808.24 and 139,686.38

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Solution

The fourth proportional to 439,210.12, 658,808.24 and 139,686.38 is: 209,527.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,210.12 : 658,808.24 = 139,686.38 : x
  2. Step 2: Convert to fraction form
    439,210.12/658,808.24 = 139,686.38/x
  3. Step 3: Cross multiply
    439,210.12x = 658,808.24 × 139,686.38
  4. Step 4: Simplify right side
    439,210.12x = 92,026,538,159.77
  5. Step 5: Solve for x
    x = 92,026,538,159.77/439,210.12
  6. Step 6: Final answer
    x = 209,527.36

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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.