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Finding the Fourth Proportional to 243,575.40, 365,420.70 and 77,363.40

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Solution

The fourth proportional to 243,575.40, 365,420.70 and 77,363.40 is: 116,063.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,575.40 : 365,420.70 = 77,363.40 : x
  2. Step 2: Convert to fraction form
    243,575.40/365,420.70 = 77,363.40/x
  3. Step 3: Cross multiply
    243,575.40x = 365,420.70 × 77,363.40
  4. Step 4: Simplify right side
    243,575.40x = 28,270,187,782.38
  5. Step 5: Solve for x
    x = 28,270,187,782.38/243,575.40
  6. Step 6: Final answer
    x = 116,063.39

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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.