Home / 314,901.45-472,516.20-137,426.40

Finding the Fourth Proportional to 314,901.45, 472,516.20 and 137,426.40

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Solution

The fourth proportional to 314,901.45, 472,516.20 and 137,426.40 is: 206,211.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,901.45 : 472,516.20 = 137,426.40 : x
  2. Step 2: Convert to fraction form
    314,901.45/472,516.20 = 137,426.40/x
  3. Step 3: Cross multiply
    314,901.45x = 472,516.20 × 137,426.40
  4. Step 4: Simplify right side
    314,901.45x = 64,936,200,307.68
  5. Step 5: Solve for x
    x = 64,936,200,307.68/314,901.45
  6. Step 6: Final answer
    x = 206,211.18

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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.