Home / 279,724.98-419,543.90-153,427.36

Finding the Fourth Proportional to 279,724.98, 419,543.90 and 153,427.36

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Solution

The fourth proportional to 279,724.98, 419,543.90 and 153,427.36 is: 230,117.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,724.98 : 419,543.90 = 153,427.36 : x
  2. Step 2: Convert to fraction form
    279,724.98/419,543.90 = 153,427.36/x
  3. Step 3: Cross multiply
    279,724.98x = 419,543.90 × 153,427.36
  4. Step 4: Simplify right side
    279,724.98x = 64,369,512,981.10
  5. Step 5: Solve for x
    x = 64,369,512,981.10/279,724.98
  6. Step 6: Final answer
    x = 230,117.14

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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.