Home / 268,339.08-402,581.20-90,846.10

Finding the Fourth Proportional to 268,339.08, 402,581.20 and 90,846.10

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Solution

The fourth proportional to 268,339.08, 402,581.20 and 90,846.10 is: 136,293.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,339.08 : 402,581.20 = 90,846.10 : x
  2. Step 2: Convert to fraction form
    268,339.08/402,581.20 = 90,846.10/x
  3. Step 3: Cross multiply
    268,339.08x = 402,581.20 × 90,846.10
  4. Step 4: Simplify right side
    268,339.08x = 36,572,931,953.32
  5. Step 5: Solve for x
    x = 36,572,931,953.32/268,339.08
  6. Step 6: Final answer
    x = 136,293.72

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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.