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Finding the Fourth Proportional to 147,391.76, 221,086.74 and 42,210.74

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Solution

The fourth proportional to 147,391.76, 221,086.74 and 42,210.74 is: 63,315.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,391.76 : 221,086.74 = 42,210.74 : x
  2. Step 2: Convert to fraction form
    147,391.76/221,086.74 = 42,210.74/x
  3. Step 3: Cross multiply
    147,391.76x = 221,086.74 × 42,210.74
  4. Step 4: Simplify right side
    147,391.76x = 9,332,234,899.59
  5. Step 5: Solve for x
    x = 9,332,234,899.59/147,391.76
  6. Step 6: Final answer
    x = 63,315.85

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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.