Home / 289,290.10-434,000.58-156,167.50

Finding the Fourth Proportional to 289,290.10, 434,000.58 and 156,167.50

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Solution

The fourth proportional to 289,290.10, 434,000.58 and 156,167.50 is: 234,286.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,290.10 : 434,000.58 = 156,167.50 : x
  2. Step 2: Convert to fraction form
    289,290.10/434,000.58 = 156,167.50/x
  3. Step 3: Cross multiply
    289,290.10x = 434,000.58 × 156,167.50
  4. Step 4: Simplify right side
    289,290.10x = 67,776,785,577.15
  5. Step 5: Solve for x
    x = 67,776,785,577.15/289,290.10
  6. Step 6: Final answer
    x = 234,286.57

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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.