Home / 289,833.10-434,749.65-156,972.85

Finding the Fourth Proportional to 289,833.10, 434,749.65 and 156,972.85

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Solution

The fourth proportional to 289,833.10, 434,749.65 and 156,972.85 is: 235,459.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,833.10 : 434,749.65 = 156,972.85 : x
  2. Step 2: Convert to fraction form
    289,833.10/434,749.65 = 156,972.85/x
  3. Step 3: Cross multiply
    289,833.10x = 434,749.65 × 156,972.85
  4. Step 4: Simplify right side
    289,833.10x = 68,243,891,597.00
  5. Step 5: Solve for x
    x = 68,243,891,597.00/289,833.10
  6. Step 6: Final answer
    x = 235,459.28

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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.