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Finding the Fourth Proportional to 266,437.50, 367,683.75 and 147,205.50

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Solution

The fourth proportional to 266,437.50, 367,683.75 and 147,205.50 is: 203,143.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,437.50 : 367,683.75 = 147,205.50 : x
  2. Step 2: Convert to fraction form
    266,437.50/367,683.75 = 147,205.50/x
  3. Step 3: Cross multiply
    266,437.50x = 367,683.75 × 147,205.50
  4. Step 4: Simplify right side
    266,437.50x = 54,125,070,260.63
  5. Step 5: Solve for x
    x = 54,125,070,260.63/266,437.50
  6. Step 6: Final answer
    x = 203,143.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.