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Finding the Fourth Proportional to 147,454.10, 220,853.10 and 121,210.10

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Solution

The fourth proportional to 147,454.10, 220,853.10 and 121,210.10 is: 181,545.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,454.10 : 220,853.10 = 121,210.10 : x
  2. Step 2: Convert to fraction form
    147,454.10/220,853.10 = 121,210.10/x
  3. Step 3: Cross multiply
    147,454.10x = 220,853.10 × 121,210.10
  4. Step 4: Simplify right side
    147,454.10x = 26,769,626,336.31
  5. Step 5: Solve for x
    x = 26,769,626,336.31/147,454.10
  6. Step 6: Final answer
    x = 181,545.49

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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.