Home / 268,528.20-402,901.76-172,572.88

Finding the Fourth Proportional to 268,528.20, 402,901.76 and 172,572.88

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Solution

The fourth proportional to 268,528.20, 402,901.76 and 172,572.88 is: 258,929.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,528.20 : 402,901.76 = 172,572.88 : x
  2. Step 2: Convert to fraction form
    268,528.20/402,901.76 = 172,572.88/x
  3. Step 3: Cross multiply
    268,528.20x = 402,901.76 × 172,572.88
  4. Step 4: Simplify right side
    268,528.20x = 69,529,917,080.27
  5. Step 5: Solve for x
    x = 69,529,917,080.27/268,528.20
  6. Step 6: Final answer
    x = 258,929.67

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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.