Home / 315,062.80-434,787.40-171,823.76

Finding the Fourth Proportional to 315,062.80, 434,787.40 and 171,823.76

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Solution

The fourth proportional to 315,062.80, 434,787.40 and 171,823.76 is: 237,117.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,062.80 : 434,787.40 = 171,823.76 : x
  2. Step 2: Convert to fraction form
    315,062.80/434,787.40 = 171,823.76/x
  3. Step 3: Cross multiply
    315,062.80x = 434,787.40 × 171,823.76
  4. Step 4: Simplify right side
    315,062.80x = 74,706,805,868.62
  5. Step 5: Solve for x
    x = 74,706,805,868.62/315,062.80
  6. Step 6: Final answer
    x = 237,117.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.