Home / 642,854.72-964,346.08-238,155.20

Finding the Fourth Proportional to 642,854.72, 964,346.08 and 238,155.20

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Solution

The fourth proportional to 642,854.72, 964,346.08 and 238,155.20 is: 357,256.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,854.72 : 964,346.08 = 238,155.20 : x
  2. Step 2: Convert to fraction form
    642,854.72/964,346.08 = 238,155.20/x
  3. Step 3: Cross multiply
    642,854.72x = 964,346.08 × 238,155.20
  4. Step 4: Simplify right side
    642,854.72x = 229,664,033,551.62
  5. Step 5: Solve for x
    x = 229,664,033,551.62/642,854.72
  6. Step 6: Final answer
    x = 357,256.51

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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.