Home / 330,761.20-456,412.44-187,492.72

Finding the Fourth Proportional to 330,761.20, 456,412.44 and 187,492.72

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Solution

The fourth proportional to 330,761.20, 456,412.44 and 187,492.72 is: 258,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,761.20 : 456,412.44 = 187,492.72 : x
  2. Step 2: Convert to fraction form
    330,761.20/456,412.44 = 187,492.72/x
  3. Step 3: Cross multiply
    330,761.20x = 456,412.44 × 187,492.72
  4. Step 4: Simplify right side
    330,761.20x = 85,574,009,817.44
  5. Step 5: Solve for x
    x = 85,574,009,817.44/330,761.20
  6. Step 6: Final answer
    x = 258,718.40

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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.