Home / 289,821.52-432,621.12-268,452.16

Finding the Fourth Proportional to 289,821.52, 432,621.12 and 268,452.16

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Solution

The fourth proportional to 289,821.52, 432,621.12 and 268,452.16 is: 400,722.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,821.52 : 432,621.12 = 268,452.16 : x
  2. Step 2: Convert to fraction form
    289,821.52/432,621.12 = 268,452.16/x
  3. Step 3: Cross multiply
    289,821.52x = 432,621.12 × 268,452.16
  4. Step 4: Simplify right side
    289,821.52x = 116,138,074,125.62
  5. Step 5: Solve for x
    x = 116,138,074,125.62/289,821.52
  6. Step 6: Final answer
    x = 400,722.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.