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Finding the Fourth Proportional to 570,655.80, 855,918.90 and 149,974.20

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Solution

The fourth proportional to 570,655.80, 855,918.90 and 149,974.20 is: 224,944.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,655.80 : 855,918.90 = 149,974.20 : x
  2. Step 2: Convert to fraction form
    570,655.80/855,918.90 = 149,974.20/x
  3. Step 3: Cross multiply
    570,655.80x = 855,918.90 × 149,974.20
  4. Step 4: Simplify right side
    570,655.80x = 128,365,752,292.38
  5. Step 5: Solve for x
    x = 128,365,752,292.38/570,655.80
  6. Step 6: Final answer
    x = 224,944.27

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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.