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Finding the Fourth Proportional to 402,160.34, 554,981.17 and 220,872.32

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Solution

The fourth proportional to 402,160.34, 554,981.17 and 220,872.32 is: 304,803.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,160.34 : 554,981.17 = 220,872.32 : x
  2. Step 2: Convert to fraction form
    402,160.34/554,981.17 = 220,872.32/x
  3. Step 3: Cross multiply
    402,160.34x = 554,981.17 × 220,872.32
  4. Step 4: Simplify right side
    402,160.34x = 122,579,977,742.44
  5. Step 5: Solve for x
    x = 122,579,977,742.44/402,160.34
  6. Step 6: Final answer
    x = 304,803.74

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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.