Home / 238,066.80-328,516.11-130,643.72

Finding the Fourth Proportional to 238,066.80, 328,516.11 and 130,643.72

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Solution

The fourth proportional to 238,066.80, 328,516.11 and 130,643.72 is: 180,279.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,066.80 : 328,516.11 = 130,643.72 : x
  2. Step 2: Convert to fraction form
    238,066.80/328,516.11 = 130,643.72/x
  3. Step 3: Cross multiply
    238,066.80x = 328,516.11 × 130,643.72
  4. Step 4: Simplify right side
    238,066.80x = 42,918,565,047.75
  5. Step 5: Solve for x
    x = 42,918,565,047.75/238,066.80
  6. Step 6: Final answer
    x = 180,279.51

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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.