Home / 289,260.70-433,851.05-89,718.30

Finding the Fourth Proportional to 289,260.70, 433,851.05 and 89,718.30

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Solution

The fourth proportional to 289,260.70, 433,851.05 and 89,718.30 is: 134,565.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,260.70 : 433,851.05 = 89,718.30 : x
  2. Step 2: Convert to fraction form
    289,260.70/433,851.05 = 89,718.30/x
  3. Step 3: Cross multiply
    289,260.70x = 433,851.05 × 89,718.30
  4. Step 4: Simplify right side
    289,260.70x = 38,924,378,659.22
  5. Step 5: Solve for x
    x = 38,924,378,659.22/289,260.70
  6. Step 6: Final answer
    x = 134,565.04

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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.