Home / 213,250.32-319,875.91-55,478.52

Finding the Fourth Proportional to 213,250.32, 319,875.91 and 55,478.52

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Solution

The fourth proportional to 213,250.32, 319,875.91 and 55,478.52 is: 83,217.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,250.32 : 319,875.91 = 55,478.52 : x
  2. Step 2: Convert to fraction form
    213,250.32/319,875.91 = 55,478.52/x
  3. Step 3: Cross multiply
    213,250.32x = 319,875.91 × 55,478.52
  4. Step 4: Simplify right side
    213,250.32x = 17,746,241,931.76
  5. Step 5: Solve for x
    x = 17,746,241,931.76/213,250.32
  6. Step 6: Final answer
    x = 83,217.89

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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.