Home / 380,257.38-570,946.79-212,106.24

Finding the Fourth Proportional to 380,257.38, 570,946.79 and 212,106.24

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Solution

The fourth proportional to 380,257.38, 570,946.79 and 212,106.24 is: 318,472.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,257.38 : 570,946.79 = 212,106.24 : x
  2. Step 2: Convert to fraction form
    380,257.38/570,946.79 = 212,106.24/x
  3. Step 3: Cross multiply
    380,257.38x = 570,946.79 × 212,106.24
  4. Step 4: Simplify right side
    380,257.38x = 121,101,376,866.97
  5. Step 5: Solve for x
    x = 121,101,376,866.97/380,257.38
  6. Step 6: Final answer
    x = 318,472.13

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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.