Home / 387,766.10-581,649.15-255,055.70

Finding the Fourth Proportional to 387,766.10, 581,649.15 and 255,055.70

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Solution

The fourth proportional to 387,766.10, 581,649.15 and 255,055.70 is: 382,583.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,766.10 : 581,649.15 = 255,055.70 : x
  2. Step 2: Convert to fraction form
    387,766.10/581,649.15 = 255,055.70/x
  3. Step 3: Cross multiply
    387,766.10x = 581,649.15 × 255,055.70
  4. Step 4: Simplify right side
    387,766.10x = 148,352,931,107.66
  5. Step 5: Solve for x
    x = 148,352,931,107.66/387,766.10
  6. Step 6: Final answer
    x = 382,583.55

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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.