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Finding the Fourth Proportional to 259,512.78, 358,127.70 and 146,335.56

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Solution

The fourth proportional to 259,512.78, 358,127.70 and 146,335.56 is: 201,943.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,512.78 : 358,127.70 = 146,335.56 : x
  2. Step 2: Convert to fraction form
    259,512.78/358,127.70 = 146,335.56/x
  3. Step 3: Cross multiply
    259,512.78x = 358,127.70 × 146,335.56
  4. Step 4: Simplify right side
    259,512.78x = 52,406,817,531.01
  5. Step 5: Solve for x
    x = 52,406,817,531.01/259,512.78
  6. Step 6: Final answer
    x = 201,943.11

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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.