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Finding the Fourth Proportional to 277,030.40, 415,545.60 and 119,436.80

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Solution

The fourth proportional to 277,030.40, 415,545.60 and 119,436.80 is: 179,155.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,030.40 : 415,545.60 = 119,436.80 : x
  2. Step 2: Convert to fraction form
    277,030.40/415,545.60 = 119,436.80/x
  3. Step 3: Cross multiply
    277,030.40x = 415,545.60 × 119,436.80
  4. Step 4: Simplify right side
    277,030.40x = 49,631,436,718.08
  5. Step 5: Solve for x
    x = 49,631,436,718.08/277,030.40
  6. Step 6: Final answer
    x = 179,155.20

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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.