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Finding the Fourth Proportional to 261,500.70, 360,948.24 and 154,105.32

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Solution

The fourth proportional to 261,500.70, 360,948.24 and 154,105.32 is: 212,710.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,500.70 : 360,948.24 = 154,105.32 : x
  2. Step 2: Convert to fraction form
    261,500.70/360,948.24 = 154,105.32/x
  3. Step 3: Cross multiply
    261,500.70x = 360,948.24 × 154,105.32
  4. Step 4: Simplify right side
    261,500.70x = 55,624,044,028.64
  5. Step 5: Solve for x
    x = 55,624,044,028.64/261,500.70
  6. Step 6: Final answer
    x = 212,710.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.