Home / 421,197.28-581,248.88-237,419.12

Finding the Fourth Proportional to 421,197.28, 581,248.88 and 237,419.12

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Solution

The fourth proportional to 421,197.28, 581,248.88 and 237,419.12 is: 327,636.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,197.28 : 581,248.88 = 237,419.12 : x
  2. Step 2: Convert to fraction form
    421,197.28/581,248.88 = 237,419.12/x
  3. Step 3: Cross multiply
    421,197.28x = 581,248.88 × 237,419.12
  4. Step 4: Simplify right side
    421,197.28x = 137,999,597,590.59
  5. Step 5: Solve for x
    x = 137,999,597,590.59/421,197.28
  6. Step 6: Final answer
    x = 327,636.49

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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.