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Finding the Fourth Proportional to 147,281.80, 220,922.70 and 53,775.40

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Solution

The fourth proportional to 147,281.80, 220,922.70 and 53,775.40 is: 80,663.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,281.80 : 220,922.70 = 53,775.40 : x
  2. Step 2: Convert to fraction form
    147,281.80/220,922.70 = 53,775.40/x
  3. Step 3: Cross multiply
    147,281.80x = 220,922.70 × 53,775.40
  4. Step 4: Simplify right side
    147,281.80x = 11,880,206,561.58
  5. Step 5: Solve for x
    x = 11,880,206,561.58/147,281.80
  6. Step 6: Final answer
    x = 80,663.10

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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.