Home / 313,108.72-432,090.18-169,868.74

Finding the Fourth Proportional to 313,108.72, 432,090.18 and 169,868.74

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Solution

The fourth proportional to 313,108.72, 432,090.18 and 169,868.74 is: 234,418.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,108.72 : 432,090.18 = 169,868.74 : x
  2. Step 2: Convert to fraction form
    313,108.72/432,090.18 = 169,868.74/x
  3. Step 3: Cross multiply
    313,108.72x = 432,090.18 × 169,868.74
  4. Step 4: Simplify right side
    313,108.72x = 73,398,614,442.97
  5. Step 5: Solve for x
    x = 73,398,614,442.97/313,108.72
  6. Step 6: Final answer
    x = 234,418.94

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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.