Home / 278,031.96-415,013.22-238,840.92

Finding the Fourth Proportional to 278,031.96, 415,013.22 and 238,840.92

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Solution

The fourth proportional to 278,031.96, 415,013.22 and 238,840.92 is: 356,513.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,031.96 : 415,013.22 = 238,840.92 : x
  2. Step 2: Convert to fraction form
    278,031.96/415,013.22 = 238,840.92/x
  3. Step 3: Cross multiply
    278,031.96x = 415,013.22 × 238,840.92
  4. Step 4: Simplify right side
    278,031.96x = 99,122,139,276.96
  5. Step 5: Solve for x
    x = 99,122,139,276.96/278,031.96
  6. Step 6: Final answer
    x = 356,513.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.