Home / 289,278.05-434,031.29-89,614.01

Finding the Fourth Proportional to 289,278.05, 434,031.29 and 89,614.01

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Solution

The fourth proportional to 289,278.05, 434,031.29 and 89,614.01 is: 134,456.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,278.05 : 434,031.29 = 89,614.01 : x
  2. Step 2: Convert to fraction form
    289,278.05/434,031.29 = 89,614.01/x
  3. Step 3: Cross multiply
    289,278.05x = 434,031.29 × 89,614.01
  4. Step 4: Simplify right side
    289,278.05x = 38,895,281,744.15
  5. Step 5: Solve for x
    x = 38,895,281,744.15/289,278.05
  6. Step 6: Final answer
    x = 134,456.39

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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.