Home / 319,227.20-478,840.80-141,545.60

Finding the Fourth Proportional to 319,227.20, 478,840.80 and 141,545.60

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Solution

The fourth proportional to 319,227.20, 478,840.80 and 141,545.60 is: 212,318.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,227.20 : 478,840.80 = 141,545.60 : x
  2. Step 2: Convert to fraction form
    319,227.20/478,840.80 = 141,545.60/x
  3. Step 3: Cross multiply
    319,227.20x = 478,840.80 × 141,545.60
  4. Step 4: Simplify right side
    319,227.20x = 67,777,808,340.48
  5. Step 5: Solve for x
    x = 67,777,808,340.48/319,227.20
  6. Step 6: Final answer
    x = 212,318.40

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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.