Home / 287,713.28-397,096.08-180,376.40

Finding the Fourth Proportional to 287,713.28, 397,096.08 and 180,376.40

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Solution

The fourth proportional to 287,713.28, 397,096.08 and 180,376.40 is: 248,951.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,713.28 : 397,096.08 = 180,376.40 : x
  2. Step 2: Convert to fraction form
    287,713.28/397,096.08 = 180,376.40/x
  3. Step 3: Cross multiply
    287,713.28x = 397,096.08 × 180,376.40
  4. Step 4: Simplify right side
    287,713.28x = 71,626,761,364.51
  5. Step 5: Solve for x
    x = 71,626,761,364.51/287,713.28
  6. Step 6: Final answer
    x = 248,951.88

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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.