Home / 280,180.49-420,174.14-90,592.29

Finding the Fourth Proportional to 280,180.49, 420,174.14 and 90,592.29

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Solution

The fourth proportional to 280,180.49, 420,174.14 and 90,592.29 is: 135,857.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,180.49 : 420,174.14 = 90,592.29 : x
  2. Step 2: Convert to fraction form
    280,180.49/420,174.14 = 90,592.29/x
  3. Step 3: Cross multiply
    280,180.49x = 420,174.14 × 90,592.29
  4. Step 4: Simplify right side
    280,180.49x = 38,064,537,088.42
  5. Step 5: Solve for x
    x = 38,064,537,088.42/280,180.49
  6. Step 6: Final answer
    x = 135,857.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.