Home / 220,461.55-304,240.17-123,686.80

Finding the Fourth Proportional to 220,461.55, 304,240.17 and 123,686.80

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Solution

The fourth proportional to 220,461.55, 304,240.17 and 123,686.80 is: 170,689.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,461.55 : 304,240.17 = 123,686.80 : x
  2. Step 2: Convert to fraction form
    220,461.55/304,240.17 = 123,686.80/x
  3. Step 3: Cross multiply
    220,461.55x = 304,240.17 × 123,686.80
  4. Step 4: Simplify right side
    220,461.55x = 37,630,492,298.16
  5. Step 5: Solve for x
    x = 37,630,492,298.16/220,461.55
  6. Step 6: Final answer
    x = 170,689.60

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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.