Home / 314,927.40-472,500.45-137,561.70

Finding the Fourth Proportional to 314,927.40, 472,500.45 and 137,561.70

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Solution

The fourth proportional to 314,927.40, 472,500.45 and 137,561.70 is: 206,390.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,927.40 : 472,500.45 = 137,561.70 : x
  2. Step 2: Convert to fraction form
    314,927.40/472,500.45 = 137,561.70/x
  3. Step 3: Cross multiply
    314,927.40x = 472,500.45 × 137,561.70
  4. Step 4: Simplify right side
    314,927.40x = 64,997,965,152.77
  5. Step 5: Solve for x
    x = 64,997,965,152.77/314,927.40
  6. Step 6: Final answer
    x = 206,390.31

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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.