Home / 220,808.12-304,755.10-130,158.86

Finding the Fourth Proportional to 220,808.12, 304,755.10 and 130,158.86

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Solution

The fourth proportional to 220,808.12, 304,755.10 and 130,158.86 is: 179,642.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,808.12 : 304,755.10 = 130,158.86 : x
  2. Step 2: Convert to fraction form
    220,808.12/304,755.10 = 130,158.86/x
  3. Step 3: Cross multiply
    220,808.12x = 304,755.10 × 130,158.86
  4. Step 4: Simplify right side
    220,808.12x = 39,666,576,395.19
  5. Step 5: Solve for x
    x = 39,666,576,395.19/220,808.12
  6. Step 6: Final answer
    x = 179,642.74

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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.