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Finding the Fourth Proportional to 155,328.10, 232,664.10 and 129,084.10

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Solution

The fourth proportional to 155,328.10, 232,664.10 and 129,084.10 is: 193,353.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,328.10 : 232,664.10 = 129,084.10 : x
  2. Step 2: Convert to fraction form
    155,328.10/232,664.10 = 129,084.10/x
  3. Step 3: Cross multiply
    155,328.10x = 232,664.10 × 129,084.10
  4. Step 4: Simplify right side
    155,328.10x = 30,033,235,950.81
  5. Step 5: Solve for x
    x = 30,033,235,950.81/155,328.10
  6. Step 6: Final answer
    x = 193,353.53

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1.5x scale

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.