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Finding the Fourth Proportional to 368,948.80, 553,423.20 and 119,630.80

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Solution

The fourth proportional to 368,948.80, 553,423.20 and 119,630.80 is: 179,446.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,948.80 : 553,423.20 = 119,630.80 : x
  2. Step 2: Convert to fraction form
    368,948.80/553,423.20 = 119,630.80/x
  3. Step 3: Cross multiply
    368,948.80x = 553,423.20 × 119,630.80
  4. Step 4: Simplify right side
    368,948.80x = 66,206,460,154.56
  5. Step 5: Solve for x
    x = 66,206,460,154.56/368,948.80
  6. Step 6: Final answer
    x = 179,446.20

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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.