Home / 531,144.20-797,169.90-215,827.40

Finding the Fourth Proportional to 531,144.20, 797,169.90 and 215,827.40

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Solution

The fourth proportional to 531,144.20, 797,169.90 and 215,827.40 is: 323,925.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,144.20 : 797,169.90 = 215,827.40 : x
  2. Step 2: Convert to fraction form
    531,144.20/797,169.90 = 215,827.40/x
  3. Step 3: Cross multiply
    531,144.20x = 797,169.90 × 215,827.40
  4. Step 4: Simplify right side
    531,144.20x = 172,051,106,875.26
  5. Step 5: Solve for x
    x = 172,051,106,875.26/531,144.20
  6. Step 6: Final answer
    x = 323,925.42

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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.