Home / 289,793.20-433,998.60-141,876.40

Finding the Fourth Proportional to 289,793.20, 433,998.60 and 141,876.40

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Solution

The fourth proportional to 289,793.20, 433,998.60 and 141,876.40 is: 212,476.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,793.20 : 433,998.60 = 141,876.40 : x
  2. Step 2: Convert to fraction form
    289,793.20/433,998.60 = 141,876.40/x
  3. Step 3: Cross multiply
    289,793.20x = 433,998.60 × 141,876.40
  4. Step 4: Simplify right side
    289,793.20x = 61,574,158,973.04
  5. Step 5: Solve for x
    x = 61,574,158,973.04/289,793.20
  6. Step 6: Final answer
    x = 212,476.20

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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.