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Finding the Fourth Proportional to 250,156.16, 345,215.72 and 135,434.88

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Solution

The fourth proportional to 250,156.16, 345,215.72 and 135,434.88 is: 186,900.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,156.16 : 345,215.72 = 135,434.88 : x
  2. Step 2: Convert to fraction form
    250,156.16/345,215.72 = 135,434.88/x
  3. Step 3: Cross multiply
    250,156.16x = 345,215.72 × 135,434.88
  4. Step 4: Simplify right side
    250,156.16x = 46,754,248,935.14
  5. Step 5: Solve for x
    x = 46,754,248,935.14/250,156.16
  6. Step 6: Final answer
    x = 186,900.25

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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.