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Finding the Fourth Proportional to 341,937.90, 513,328.05 and 215,577.90

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Solution

The fourth proportional to 341,937.90, 513,328.05 and 215,577.90 is: 323,632.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,937.90 : 513,328.05 = 215,577.90 : x
  2. Step 2: Convert to fraction form
    341,937.90/513,328.05 = 215,577.90/x
  3. Step 3: Cross multiply
    341,937.90x = 513,328.05 × 215,577.90
  4. Step 4: Simplify right side
    341,937.90x = 110,662,183,030.10
  5. Step 5: Solve for x
    x = 110,662,183,030.10/341,937.90
  6. Step 6: Final answer
    x = 323,632.40

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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.