Home / 279,451.07-385,642.53-152,126.63

Finding the Fourth Proportional to 279,451.07, 385,642.53 and 152,126.63

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Solution

The fourth proportional to 279,451.07, 385,642.53 and 152,126.63 is: 209,934.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,451.07 : 385,642.53 = 152,126.63 : x
  2. Step 2: Convert to fraction form
    279,451.07/385,642.53 = 152,126.63/x
  3. Step 3: Cross multiply
    279,451.07x = 385,642.53 × 152,126.63
  4. Step 4: Simplify right side
    279,451.07x = 58,666,496,545.36
  5. Step 5: Solve for x
    x = 58,666,496,545.36/279,451.07
  6. Step 6: Final answer
    x = 209,934.78

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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.