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Finding the Fourth Proportional to 249,305.40, 373,739.40 and 149,505.30

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Solution

The fourth proportional to 249,305.40, 373,739.40 and 149,505.30 is: 224,126.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,305.40 : 373,739.40 = 149,505.30 : x
  2. Step 2: Convert to fraction form
    249,305.40/373,739.40 = 149,505.30/x
  3. Step 3: Cross multiply
    249,305.40x = 373,739.40 × 149,505.30
  4. Step 4: Simplify right side
    249,305.40x = 55,876,021,118.82
  5. Step 5: Solve for x
    x = 55,876,021,118.82/249,305.40
  6. Step 6: Final answer
    x = 224,126.80

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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.