Home / 268,474.02-402,459.53-90,856.68

Finding the Fourth Proportional to 268,474.02, 402,459.53 and 90,856.68

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Solution

The fourth proportional to 268,474.02, 402,459.53 and 90,856.68 is: 136,199.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,474.02 : 402,459.53 = 90,856.68 : x
  2. Step 2: Convert to fraction form
    268,474.02/402,459.53 = 90,856.68/x
  3. Step 3: Cross multiply
    268,474.02x = 402,459.53 × 90,856.68
  4. Step 4: Simplify right side
    268,474.02x = 36,566,136,275.88
  5. Step 5: Solve for x
    x = 36,566,136,275.88/268,474.02
  6. Step 6: Final answer
    x = 136,199.91

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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.