Home / 287,712.28-397,094.70-180,375.40

Finding the Fourth Proportional to 287,712.28, 397,094.70 and 180,375.40

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Solution

The fourth proportional to 287,712.28, 397,094.70 and 180,375.40 is: 248,950.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,712.28 : 397,094.70 = 180,375.40 : x
  2. Step 2: Convert to fraction form
    287,712.28/397,094.70 = 180,375.40/x
  3. Step 3: Cross multiply
    287,712.28x = 397,094.70 × 180,375.40
  4. Step 4: Simplify right side
    287,712.28x = 71,626,115,350.38
  5. Step 5: Solve for x
    x = 71,626,115,350.38/287,712.28
  6. Step 6: Final answer
    x = 248,950.50

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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.