Home / 289,244.32-434,045.69-139,499.62

Finding the Fourth Proportional to 289,244.32, 434,045.69 and 139,499.62

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Solution

The fourth proportional to 289,244.32, 434,045.69 and 139,499.62 is: 209,335.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,244.32 : 434,045.69 = 139,499.62 : x
  2. Step 2: Convert to fraction form
    289,244.32/434,045.69 = 139,499.62/x
  3. Step 3: Cross multiply
    289,244.32x = 434,045.69 × 139,499.62
  4. Step 4: Simplify right side
    289,244.32x = 60,549,207,558.15
  5. Step 5: Solve for x
    x = 60,549,207,558.15/289,244.32
  6. Step 6: Final answer
    x = 209,335.86

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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.