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Finding the Fourth Proportional to 154,287.36, 231,347.88 and 83,248.08

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Solution

The fourth proportional to 154,287.36, 231,347.88 and 83,248.08 is: 124,827.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,287.36 : 231,347.88 = 83,248.08 : x
  2. Step 2: Convert to fraction form
    154,287.36/231,347.88 = 83,248.08/x
  3. Step 3: Cross multiply
    154,287.36x = 231,347.88 × 83,248.08
  4. Step 4: Simplify right side
    154,287.36x = 19,259,266,822.07
  5. Step 5: Solve for x
    x = 19,259,266,822.07/154,287.36
  6. Step 6: Final answer
    x = 124,827.25

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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.