Home / 279,339.12-385,488-152,011.92

Finding the Fourth Proportional to 279,339.12, 385,488 and 152,011.92

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Solution

The fourth proportional to 279,339.12, 385,488 and 152,011.92 is: 209,776.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,339.12 : 385,488 = 152,011.92 : x
  2. Step 2: Convert to fraction form
    279,339.12/385,488 = 152,011.92/x
  3. Step 3: Cross multiply
    279,339.12x = 385,488 × 152,011.92
  4. Step 4: Simplify right side
    279,339.12x = 58,598,771,016.96
  5. Step 5: Solve for x
    x = 58,598,771,016.96/279,339.12
  6. Step 6: Final answer
    x = 209,776.46

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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.