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Finding the Fourth Proportional to 250,106.76, 345,147.33 and 136,929.51

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Solution

The fourth proportional to 250,106.76, 345,147.33 and 136,929.51 is: 188,962.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,106.76 : 345,147.33 = 136,929.51 : x
  2. Step 2: Convert to fraction form
    250,106.76/345,147.33 = 136,929.51/x
  3. Step 3: Cross multiply
    250,106.76x = 345,147.33 × 136,929.51
  4. Step 4: Simplify right side
    250,106.76x = 47,260,854,774.71
  5. Step 5: Solve for x
    x = 47,260,854,774.71/250,106.76
  6. Step 6: Final answer
    x = 188,962.72

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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.