Home / 642,158.93-962,565.89-215,590.05

Finding the Fourth Proportional to 642,158.93, 962,565.89 and 215,590.05

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Solution

The fourth proportional to 642,158.93, 962,565.89 and 215,590.05 is: 323,159.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,158.93 : 962,565.89 = 215,590.05 : x
  2. Step 2: Convert to fraction form
    642,158.93/962,565.89 = 215,590.05/x
  3. Step 3: Cross multiply
    642,158.93x = 962,565.89 × 215,590.05
  4. Step 4: Simplify right side
    642,158.93x = 207,519,627,275.44
  5. Step 5: Solve for x
    x = 207,519,627,275.44/642,158.93
  6. Step 6: Final answer
    x = 323,159.30

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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.