Home / 261,337.68-391,838.04-111,675.60

Finding the Fourth Proportional to 261,337.68, 391,838.04 and 111,675.60

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Solution

The fourth proportional to 261,337.68, 391,838.04 and 111,675.60 is: 167,441.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,337.68 : 391,838.04 = 111,675.60 : x
  2. Step 2: Convert to fraction form
    261,337.68/391,838.04 = 111,675.60/x
  3. Step 3: Cross multiply
    261,337.68x = 391,838.04 × 111,675.60
  4. Step 4: Simplify right side
    261,337.68x = 43,758,748,219.82
  5. Step 5: Solve for x
    x = 43,758,748,219.82/261,337.68
  6. Step 6: Final answer
    x = 167,441.40

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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.