Home / 358,681.20-538,054.80-92,442.70

Finding the Fourth Proportional to 358,681.20, 538,054.80 and 92,442.70

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Solution

The fourth proportional to 358,681.20, 538,054.80 and 92,442.70 is: 138,672.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,681.20 : 538,054.80 = 92,442.70 : x
  2. Step 2: Convert to fraction form
    358,681.20/538,054.80 = 92,442.70/x
  3. Step 3: Cross multiply
    358,681.20x = 538,054.80 × 92,442.70
  4. Step 4: Simplify right side
    358,681.20x = 49,739,238,459.96
  5. Step 5: Solve for x
    x = 49,739,238,459.96/358,681.20
  6. Step 6: Final answer
    x = 138,672.56

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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.