Home / 289,143.14-433,756.15-89,479.15

Finding the Fourth Proportional to 289,143.14, 433,756.15 and 89,479.15

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Solution

The fourth proportional to 289,143.14, 433,756.15 and 89,479.15 is: 134,231.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,143.14 : 433,756.15 = 89,479.15 : x
  2. Step 2: Convert to fraction form
    289,143.14/433,756.15 = 89,479.15/x
  3. Step 3: Cross multiply
    289,143.14x = 433,756.15 × 89,479.15
  4. Step 4: Simplify right side
    289,143.14x = 38,812,130,301.18
  5. Step 5: Solve for x
    x = 38,812,130,301.18/289,143.14
  6. Step 6: Final answer
    x = 134,231.55

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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.