Home / 315,123.30-472,463.52-115,417.74

Finding the Fourth Proportional to 315,123.30, 472,463.52 and 115,417.74

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Solution

The fourth proportional to 315,123.30, 472,463.52 and 115,417.74 is: 173,045.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,123.30 : 472,463.52 = 115,417.74 : x
  2. Step 2: Convert to fraction form
    315,123.30/472,463.52 = 115,417.74/x
  3. Step 3: Cross multiply
    315,123.30x = 472,463.52 × 115,417.74
  4. Step 4: Simplify right side
    315,123.30x = 54,530,671,710.84
  5. Step 5: Solve for x
    x = 54,530,671,710.84/315,123.30
  6. Step 6: Final answer
    x = 173,045.51

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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.