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Finding the Fourth Proportional to 153,583.92, 212,016.96 and 108,298.80

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Solution

The fourth proportional to 153,583.92, 212,016.96 and 108,298.80 is: 149,502.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,583.92 : 212,016.96 = 108,298.80 : x
  2. Step 2: Convert to fraction form
    153,583.92/212,016.96 = 108,298.80/x
  3. Step 3: Cross multiply
    153,583.92x = 212,016.96 × 108,298.80
  4. Step 4: Simplify right side
    153,583.92x = 22,961,182,347.65
  5. Step 5: Solve for x
    x = 22,961,182,347.65/153,583.92
  6. Step 6: Final answer
    x = 149,502.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.