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Finding the Fourth Proportional to 379,744.40, 569,616.60 and 155,030.15

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Solution

The fourth proportional to 379,744.40, 569,616.60 and 155,030.15 is: 232,545.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,744.40 : 569,616.60 = 155,030.15 : x
  2. Step 2: Convert to fraction form
    379,744.40/569,616.60 = 155,030.15/x
  3. Step 3: Cross multiply
    379,744.40x = 569,616.60 × 155,030.15
  4. Step 4: Simplify right side
    379,744.40x = 88,307,746,940.49
  5. Step 5: Solve for x
    x = 88,307,746,940.49/379,744.40
  6. Step 6: Final answer
    x = 232,545.23

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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.