Home / 315,947.20-473,920.81-105,585.13

Finding the Fourth Proportional to 315,947.20, 473,920.81 and 105,585.13

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Solution

The fourth proportional to 315,947.20, 473,920.81 and 105,585.13 is: 158,377.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,947.20 : 473,920.81 = 105,585.13 : x
  2. Step 2: Convert to fraction form
    315,947.20/473,920.81 = 105,585.13/x
  3. Step 3: Cross multiply
    315,947.20x = 473,920.81 × 105,585.13
  4. Step 4: Simplify right side
    315,947.20x = 50,038,990,333.56
  5. Step 5: Solve for x
    x = 50,038,990,333.56/315,947.20
  6. Step 6: Final answer
    x = 158,377.70

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1.5x scale

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.