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Finding the Fourth Proportional to 100,390.16, 150,598.84 and 58,290

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Solution

The fourth proportional to 100,390.16, 150,598.84 and 58,290 is: 87,442.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,390.16 : 150,598.84 = 58,290 : x
  2. Step 2: Convert to fraction form
    100,390.16/150,598.84 = 58,290/x
  3. Step 3: Cross multiply
    100,390.16x = 150,598.84 × 58,290
  4. Step 4: Simplify right side
    100,390.16x = 8,778,406,383.60
  5. Step 5: Solve for x
    x = 8,778,406,383.60/100,390.16
  6. Step 6: Final answer
    x = 87,442.90

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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.