Home / 279,439.47-385,628.85-152,114.76

Finding the Fourth Proportional to 279,439.47, 385,628.85 and 152,114.76

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Solution

The fourth proportional to 279,439.47, 385,628.85 and 152,114.76 is: 209,919.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,439.47 : 385,628.85 = 152,114.76 : x
  2. Step 2: Convert to fraction form
    279,439.47/385,628.85 = 152,114.76/x
  3. Step 3: Cross multiply
    279,439.47x = 385,628.85 × 152,114.76
  4. Step 4: Simplify right side
    279,439.47x = 58,659,839,966.83
  5. Step 5: Solve for x
    x = 58,659,839,966.83/279,439.47
  6. Step 6: Final answer
    x = 209,919.67

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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.