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Finding the Fourth Proportional to 570,055.80, 855,083.70 and 149,374.20

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Solution

The fourth proportional to 570,055.80, 855,083.70 and 149,374.20 is: 224,061.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,055.80 : 855,083.70 = 149,374.20 : x
  2. Step 2: Convert to fraction form
    570,055.80/855,083.70 = 149,374.20/x
  3. Step 3: Cross multiply
    570,055.80x = 855,083.70 × 149,374.20
  4. Step 4: Simplify right side
    570,055.80x = 127,727,443,620.54
  5. Step 5: Solve for x
    x = 127,727,443,620.54/570,055.80
  6. Step 6: Final answer
    x = 224,061.30

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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.