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Finding the Fourth Proportional to 559,220.66, 838,768.19 and 154,470.40

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Solution

The fourth proportional to 559,220.66, 838,768.19 and 154,470.40 is: 231,688.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,220.66 : 838,768.19 = 154,470.40 : x
  2. Step 2: Convert to fraction form
    559,220.66/838,768.19 = 154,470.40/x
  3. Step 3: Cross multiply
    559,220.66x = 838,768.19 × 154,470.40
  4. Step 4: Simplify right side
    559,220.66x = 129,564,857,816.58
  5. Step 5: Solve for x
    x = 129,564,857,816.58/559,220.66
  6. Step 6: Final answer
    x = 231,688.25

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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.