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Finding the Fourth Proportional to 520,144.17, 780,250.26 and 160,270.89

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Solution

The fourth proportional to 520,144.17, 780,250.26 and 160,270.89 is: 240,416.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,144.17 : 780,250.26 = 160,270.89 : x
  2. Step 2: Convert to fraction form
    520,144.17/780,250.26 = 160,270.89/x
  3. Step 3: Cross multiply
    520,144.17x = 780,250.26 × 160,270.89
  4. Step 4: Simplify right side
    520,144.17x = 125,051,403,592.93
  5. Step 5: Solve for x
    x = 125,051,403,592.93/520,144.17
  6. Step 6: Final answer
    x = 240,416.81

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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.