Home / 499,984.20-749,903.40-144,961.20

Finding the Fourth Proportional to 499,984.20, 749,903.40 and 144,961.20

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Solution

The fourth proportional to 499,984.20, 749,903.40 and 144,961.20 is: 217,420.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,984.20 : 749,903.40 = 144,961.20 : x
  2. Step 2: Convert to fraction form
    499,984.20/749,903.40 = 144,961.20/x
  3. Step 3: Cross multiply
    499,984.20x = 749,903.40 × 144,961.20
  4. Step 4: Simplify right side
    499,984.20x = 108,706,896,748.08
  5. Step 5: Solve for x
    x = 108,706,896,748.08/499,984.20
  6. Step 6: Final answer
    x = 217,420.66

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1.5x scale

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.