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Finding the Fourth Proportional to 317,229.90, 437,547.87 and 269,407.50

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Solution

The fourth proportional to 317,229.90, 437,547.87 and 269,407.50 is: 371,587.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,229.90 : 437,547.87 = 269,407.50 : x
  2. Step 2: Convert to fraction form
    317,229.90/437,547.87 = 269,407.50/x
  3. Step 3: Cross multiply
    317,229.90x = 437,547.87 × 269,407.50
  4. Step 4: Simplify right side
    317,229.90x = 117,878,677,787.03
  5. Step 5: Solve for x
    x = 117,878,677,787.03/317,229.90
  6. Step 6: Final answer
    x = 371,587.54

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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.