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Finding the Fourth Proportional to 259,886.80, 358,639.90 and 145,167.04

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Solution

The fourth proportional to 259,886.80, 358,639.90 and 145,167.04 is: 200,328.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,886.80 : 358,639.90 = 145,167.04 : x
  2. Step 2: Convert to fraction form
    259,886.80/358,639.90 = 145,167.04/x
  3. Step 3: Cross multiply
    259,886.80x = 358,639.90 × 145,167.04
  4. Step 4: Simplify right side
    259,886.80x = 52,062,692,708.90
  5. Step 5: Solve for x
    x = 52,062,692,708.90/259,886.80
  6. Step 6: Final answer
    x = 200,328.35

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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.