Home / 314,909.45-472,528.20-137,434.40

Finding the Fourth Proportional to 314,909.45, 472,528.20 and 137,434.40

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Solution

The fourth proportional to 314,909.45, 472,528.20 and 137,434.40 is: 206,223.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,909.45 : 472,528.20 = 137,434.40 : x
  2. Step 2: Convert to fraction form
    314,909.45/472,528.20 = 137,434.40/x
  3. Step 3: Cross multiply
    314,909.45x = 472,528.20 × 137,434.40
  4. Step 4: Simplify right side
    314,909.45x = 64,941,629,650.08
  5. Step 5: Solve for x
    x = 64,941,629,650.08/314,909.45
  6. Step 6: Final answer
    x = 206,223.18

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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.