Home / 238,115.16-328,588.38-130,685.40

Finding the Fourth Proportional to 238,115.16, 328,588.38 and 130,685.40

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Solution

The fourth proportional to 238,115.16, 328,588.38 and 130,685.40 is: 180,340.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,115.16 : 328,588.38 = 130,685.40 : x
  2. Step 2: Convert to fraction form
    238,115.16/328,588.38 = 130,685.40/x
  3. Step 3: Cross multiply
    238,115.16x = 328,588.38 × 130,685.40
  4. Step 4: Simplify right side
    238,115.16x = 42,941,703,875.65
  5. Step 5: Solve for x
    x = 42,941,703,875.65/238,115.16
  6. Step 6: Final answer
    x = 180,340.07

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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.