Home / 315,306.45-435,132.51-179,360.10

Finding the Fourth Proportional to 315,306.45, 435,132.51 and 179,360.10

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Solution

The fourth proportional to 315,306.45, 435,132.51 and 179,360.10 is: 247,522.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,306.45 : 435,132.51 = 179,360.10 : x
  2. Step 2: Convert to fraction form
    315,306.45/435,132.51 = 179,360.10/x
  3. Step 3: Cross multiply
    315,306.45x = 435,132.51 × 179,360.10
  4. Step 4: Simplify right side
    315,306.45x = 78,045,410,506.85
  5. Step 5: Solve for x
    x = 78,045,410,506.85/315,306.45
  6. Step 6: Final answer
    x = 247,522.40

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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.