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Finding the Fourth Proportional to 312,055.20, 467,545.20 and 145,501.60

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Solution

The fourth proportional to 312,055.20, 467,545.20 and 145,501.60 is: 218,001.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,055.20 : 467,545.20 = 145,501.60 : x
  2. Step 2: Convert to fraction form
    312,055.20/467,545.20 = 145,501.60/x
  3. Step 3: Cross multiply
    312,055.20x = 467,545.20 × 145,501.60
  4. Step 4: Simplify right side
    312,055.20x = 68,028,574,672.32
  5. Step 5: Solve for x
    x = 68,028,574,672.32/312,055.20
  6. Step 6: Final answer
    x = 218,001.73

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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.