Home / 314,904.45-472,520.70-137,429.40

Finding the Fourth Proportional to 314,904.45, 472,520.70 and 137,429.40

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Solution

The fourth proportional to 314,904.45, 472,520.70 and 137,429.40 is: 206,215.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,904.45 : 472,520.70 = 137,429.40 : x
  2. Step 2: Convert to fraction form
    314,904.45/472,520.70 = 137,429.40/x
  3. Step 3: Cross multiply
    314,904.45x = 472,520.70 × 137,429.40
  4. Step 4: Simplify right side
    314,904.45x = 64,938,236,288.58
  5. Step 5: Solve for x
    x = 64,938,236,288.58/314,904.45
  6. Step 6: Final answer
    x = 206,215.68

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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.