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Finding the Fourth Proportional to 375,430.10, 563,307.15 and 217,793.30

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Solution

The fourth proportional to 375,430.10, 563,307.15 and 217,793.30 is: 326,783.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,430.10 : 563,307.15 = 217,793.30 : x
  2. Step 2: Convert to fraction form
    375,430.10/563,307.15 = 217,793.30/x
  3. Step 3: Cross multiply
    375,430.10x = 563,307.15 × 217,793.30
  4. Step 4: Simplify right side
    375,430.10x = 122,684,523,112.10
  5. Step 5: Solve for x
    x = 122,684,523,112.10/375,430.10
  6. Step 6: Final answer
    x = 326,783.93

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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.