Home / 254,444.80-381,521.40-76,925.20

Finding the Fourth Proportional to 254,444.80, 381,521.40 and 76,925.20

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Solution

The fourth proportional to 254,444.80, 381,521.40 and 76,925.20 is: 115,343.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,444.80 : 381,521.40 = 76,925.20 : x
  2. Step 2: Convert to fraction form
    254,444.80/381,521.40 = 76,925.20/x
  3. Step 3: Cross multiply
    254,444.80x = 381,521.40 × 76,925.20
  4. Step 4: Simplify right side
    254,444.80x = 29,348,609,999.28
  5. Step 5: Solve for x
    x = 29,348,609,999.28/254,444.80
  6. Step 6: Final answer
    x = 115,343.72

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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.