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Finding the Fourth Proportional to 341,402.30, 512,103.45 and 215,431.10

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Solution

The fourth proportional to 341,402.30, 512,103.45 and 215,431.10 is: 323,146.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,402.30 : 512,103.45 = 215,431.10 : x
  2. Step 2: Convert to fraction form
    341,402.30/512,103.45 = 215,431.10/x
  3. Step 3: Cross multiply
    341,402.30x = 512,103.45 × 215,431.10
  4. Step 4: Simplify right side
    341,402.30x = 110,323,009,547.30
  5. Step 5: Solve for x
    x = 110,323,009,547.30/341,402.30
  6. Step 6: Final answer
    x = 323,146.65

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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.