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Finding the Fourth Proportional to 438,502.08, 657,821.76 and 185,783.04

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Solution

The fourth proportional to 438,502.08, 657,821.76 and 185,783.04 is: 278,703.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,502.08 : 657,821.76 = 185,783.04 : x
  2. Step 2: Convert to fraction form
    438,502.08/657,821.76 = 185,783.04/x
  3. Step 3: Cross multiply
    438,502.08x = 657,821.76 × 185,783.04
  4. Step 4: Simplify right side
    438,502.08x = 122,212,126,350.95
  5. Step 5: Solve for x
    x = 122,212,126,350.95/438,502.08
  6. Step 6: Final answer
    x = 278,703.64

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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.