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Finding the Fourth Proportional to 315,233.72, 435,020.40 and 179,267.72

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Solution

The fourth proportional to 315,233.72, 435,020.40 and 179,267.72 is: 247,388.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,233.72 : 435,020.40 = 179,267.72 : x
  2. Step 2: Convert to fraction form
    315,233.72/435,020.40 = 179,267.72/x
  3. Step 3: Cross multiply
    315,233.72x = 435,020.40 × 179,267.72
  4. Step 4: Simplify right side
    315,233.72x = 77,985,115,261.49
  5. Step 5: Solve for x
    x = 77,985,115,261.49/315,233.72
  6. Step 6: Final answer
    x = 247,388.24

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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.