Home / 238,220.72-328,753.04-130,798.96

Finding the Fourth Proportional to 238,220.72, 328,753.04 and 130,798.96

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Solution

The fourth proportional to 238,220.72, 328,753.04 and 130,798.96 is: 180,507.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,220.72 : 328,753.04 = 130,798.96 : x
  2. Step 2: Convert to fraction form
    238,220.72/328,753.04 = 130,798.96/x
  3. Step 3: Cross multiply
    238,220.72x = 328,753.04 × 130,798.96
  4. Step 4: Simplify right side
    238,220.72x = 43,000,555,728.84
  5. Step 5: Solve for x
    x = 43,000,555,728.84/238,220.72
  6. Step 6: Final answer
    x = 180,507.20

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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.