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Finding the Fourth Proportional to 570,645.30, 855,903.15 and 149,963.70

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Solution

The fourth proportional to 570,645.30, 855,903.15 and 149,963.70 is: 224,928.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,645.30 : 855,903.15 = 149,963.70 : x
  2. Step 2: Convert to fraction form
    570,645.30/855,903.15 = 149,963.70/x
  3. Step 3: Cross multiply
    570,645.30x = 855,903.15 × 149,963.70
  4. Step 4: Simplify right side
    570,645.30x = 128,354,403,215.66
  5. Step 5: Solve for x
    x = 128,354,403,215.66/570,645.30
  6. Step 6: Final answer
    x = 224,928.52

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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.