Home / 467,938.64-645,755.30-253,078.70

Finding the Fourth Proportional to 467,938.64, 645,755.30 and 253,078.70

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Solution

The fourth proportional to 467,938.64, 645,755.30 and 253,078.70 is: 349,248.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,938.64 : 645,755.30 = 253,078.70 : x
  2. Step 2: Convert to fraction form
    467,938.64/645,755.30 = 253,078.70/x
  3. Step 3: Cross multiply
    467,938.64x = 645,755.30 × 253,078.70
  4. Step 4: Simplify right side
    467,938.64x = 163,426,911,842.11
  5. Step 5: Solve for x
    x = 163,426,911,842.11/467,938.64
  6. Step 6: Final answer
    x = 349,248.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.