Home / 316,029.23-436,117.35-172,787.75

Finding the Fourth Proportional to 316,029.23, 436,117.35 and 172,787.75

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Solution

The fourth proportional to 316,029.23, 436,117.35 and 172,787.75 is: 238,445.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,029.23 : 436,117.35 = 172,787.75 : x
  2. Step 2: Convert to fraction form
    316,029.23/436,117.35 = 172,787.75/x
  3. Step 3: Cross multiply
    316,029.23x = 436,117.35 × 172,787.75
  4. Step 4: Simplify right side
    316,029.23x = 75,355,732,597.94
  5. Step 5: Solve for x
    x = 75,355,732,597.94/316,029.23
  6. Step 6: Final answer
    x = 238,445.46

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1.5x scale

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.