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Finding the Fourth Proportional to 145,750.50, 218,625.75 and 40,572.20

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Solution

The fourth proportional to 145,750.50, 218,625.75 and 40,572.20 is: 60,858.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,750.50 : 218,625.75 = 40,572.20 : x
  2. Step 2: Convert to fraction form
    145,750.50/218,625.75 = 40,572.20/x
  3. Step 3: Cross multiply
    145,750.50x = 218,625.75 × 40,572.20
  4. Step 4: Simplify right side
    145,750.50x = 8,870,128,200.71
  5. Step 5: Solve for x
    x = 8,870,128,200.71/145,750.50
  6. Step 6: Final answer
    x = 60,858.30

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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.