Home / 279,312.12-418,714.02-101,778.66

Finding the Fourth Proportional to 279,312.12, 418,714.02 and 101,778.66

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Solution

The fourth proportional to 279,312.12, 418,714.02 and 101,778.66 is: 152,575.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,312.12 : 418,714.02 = 101,778.66 : x
  2. Step 2: Convert to fraction form
    279,312.12/418,714.02 = 101,778.66/x
  3. Step 3: Cross multiply
    279,312.12x = 418,714.02 × 101,778.66
  4. Step 4: Simplify right side
    279,312.12x = 42,616,151,878.81
  5. Step 5: Solve for x
    x = 42,616,151,878.81/279,312.12
  6. Step 6: Final answer
    x = 152,575.38

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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.