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Finding the Fourth Proportional to 514,569.70, 771,854.55 and 159,619.60

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Solution

The fourth proportional to 514,569.70, 771,854.55 and 159,619.60 is: 239,429.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,569.70 : 771,854.55 = 159,619.60 : x
  2. Step 2: Convert to fraction form
    514,569.70/771,854.55 = 159,619.60/x
  3. Step 3: Cross multiply
    514,569.70x = 771,854.55 × 159,619.60
  4. Step 4: Simplify right side
    514,569.70x = 123,203,114,529.18
  5. Step 5: Solve for x
    x = 123,203,114,529.18/514,569.70
  6. Step 6: Final answer
    x = 239,429.40

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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.