Home / 319,233.20-478,849.80-292,276.40

Finding the Fourth Proportional to 319,233.20, 478,849.80 and 292,276.40

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Solution

The fourth proportional to 319,233.20, 478,849.80 and 292,276.40 is: 438,414.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,233.20 : 478,849.80 = 292,276.40 : x
  2. Step 2: Convert to fraction form
    319,233.20/478,849.80 = 292,276.40/x
  3. Step 3: Cross multiply
    319,233.20x = 478,849.80 × 292,276.40
  4. Step 4: Simplify right side
    319,233.20x = 139,956,495,684.72
  5. Step 5: Solve for x
    x = 139,956,495,684.72/319,233.20
  6. Step 6: Final answer
    x = 438,414.60

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Similar ratio
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1.5x scale

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.