Home / 238,140.79-328,633.13-130,712.65

Finding the Fourth Proportional to 238,140.79, 328,633.13 and 130,712.65

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Solution

The fourth proportional to 238,140.79, 328,633.13 and 130,712.65 is: 180,382.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,140.79 : 328,633.13 = 130,712.65 : x
  2. Step 2: Convert to fraction form
    238,140.79/328,633.13 = 130,712.65/x
  3. Step 3: Cross multiply
    238,140.79x = 328,633.13 × 130,712.65
  4. Step 4: Simplify right side
    238,140.79x = 42,956,506,805.29
  5. Step 5: Solve for x
    x = 42,956,506,805.29/238,140.79
  6. Step 6: Final answer
    x = 180,382.82

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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.