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Finding the Fourth Proportional to 253,388.32, 380,035.90 and 93,429.52

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Solution

The fourth proportional to 253,388.32, 380,035.90 and 93,429.52 is: 140,127.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,388.32 : 380,035.90 = 93,429.52 : x
  2. Step 2: Convert to fraction form
    253,388.32/380,035.90 = 93,429.52/x
  3. Step 3: Cross multiply
    253,388.32x = 380,035.90 × 93,429.52
  4. Step 4: Simplify right side
    253,388.32x = 35,506,571,719.77
  5. Step 5: Solve for x
    x = 35,506,571,719.77/253,388.32
  6. Step 6: Final answer
    x = 140,127.10

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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.