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Finding the Fourth Proportional to 318,588.16, 439,648.28 and 175,345.14

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Solution

The fourth proportional to 318,588.16, 439,648.28 and 175,345.14 is: 241,974.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,588.16 : 439,648.28 = 175,345.14 : x
  2. Step 2: Convert to fraction form
    318,588.16/439,648.28 = 175,345.14/x
  3. Step 3: Cross multiply
    318,588.16x = 439,648.28 × 175,345.14
  4. Step 4: Simplify right side
    318,588.16x = 77,090,189,207.36
  5. Step 5: Solve for x
    x = 77,090,189,207.36/318,588.16
  6. Step 6: Final answer
    x = 241,974.43

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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.