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Finding the Fourth Proportional to 341,520.90, 512,281.35 and 217,412.10

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Solution

The fourth proportional to 341,520.90, 512,281.35 and 217,412.10 is: 326,118.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,520.90 : 512,281.35 = 217,412.10 : x
  2. Step 2: Convert to fraction form
    341,520.90/512,281.35 = 217,412.10/x
  3. Step 3: Cross multiply
    341,520.90x = 512,281.35 × 217,412.10
  4. Step 4: Simplify right side
    341,520.90x = 111,376,164,094.34
  5. Step 5: Solve for x
    x = 111,376,164,094.34/341,520.90
  6. Step 6: Final answer
    x = 326,118.15

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1.5x scale

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.