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Finding the Fourth Proportional to 251,077.65, 346,487.13 and 137,900.40

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Solution

The fourth proportional to 251,077.65, 346,487.13 and 137,900.40 is: 190,302.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,077.65 : 346,487.13 = 137,900.40 : x
  2. Step 2: Convert to fraction form
    251,077.65/346,487.13 = 137,900.40/x
  3. Step 3: Cross multiply
    251,077.65x = 346,487.13 × 137,900.40
  4. Step 4: Simplify right side
    251,077.65x = 47,780,713,821.85
  5. Step 5: Solve for x
    x = 47,780,713,821.85/251,077.65
  6. Step 6: Final answer
    x = 190,302.54

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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.