Home / 279,340.72-385,498.94-158,487.10

Finding the Fourth Proportional to 279,340.72, 385,498.94 and 158,487.10

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Solution

The fourth proportional to 279,340.72, 385,498.94 and 158,487.10 is: 218,717.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,340.72 : 385,498.94 = 158,487.10 : x
  2. Step 2: Convert to fraction form
    279,340.72/385,498.94 = 158,487.10/x
  3. Step 3: Cross multiply
    279,340.72x = 385,498.94 × 158,487.10
  4. Step 4: Simplify right side
    279,340.72x = 61,096,609,931.77
  5. Step 5: Solve for x
    x = 61,096,609,931.77/279,340.72
  6. Step 6: Final answer
    x = 218,717.16

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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.