Home / 315,966.10-473,529.96-138,279.64

Finding the Fourth Proportional to 315,966.10, 473,529.96 and 138,279.64

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Solution

The fourth proportional to 315,966.10, 473,529.96 and 138,279.64 is: 207,236.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,966.10 : 473,529.96 = 138,279.64 : x
  2. Step 2: Convert to fraction form
    315,966.10/473,529.96 = 138,279.64/x
  3. Step 3: Cross multiply
    315,966.10x = 473,529.96 × 138,279.64
  4. Step 4: Simplify right side
    315,966.10x = 65,479,552,398.01
  5. Step 5: Solve for x
    x = 65,479,552,398.01/315,966.10
  6. Step 6: Final answer
    x = 207,236.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.