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Finding the Fourth Proportional to 250,210.62, 345,298.95 and 137,039.58

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Solution

The fourth proportional to 250,210.62, 345,298.95 and 137,039.58 is: 189,119.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,210.62 : 345,298.95 = 137,039.58 : x
  2. Step 2: Convert to fraction form
    250,210.62/345,298.95 = 137,039.58/x
  3. Step 3: Cross multiply
    250,210.62x = 345,298.95 × 137,039.58
  4. Step 4: Simplify right side
    250,210.62x = 47,319,623,082.44
  5. Step 5: Solve for x
    x = 47,319,623,082.44/250,210.62
  6. Step 6: Final answer
    x = 189,119.16

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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.