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Finding the Fourth Proportional to 155,417.81, 232,818.05 and 119,755.40

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Solution

The fourth proportional to 155,417.81, 232,818.05 and 119,755.40 is: 179,395.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,417.81 : 232,818.05 = 119,755.40 : x
  2. Step 2: Convert to fraction form
    155,417.81/232,818.05 = 119,755.40/x
  3. Step 3: Cross multiply
    155,417.81x = 232,818.05 × 119,755.40
  4. Step 4: Simplify right side
    155,417.81x = 27,881,216,942.10
  5. Step 5: Solve for x
    x = 27,881,216,942.10/155,417.81
  6. Step 6: Final answer
    x = 179,395.26

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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.