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Finding the Fourth Proportional to 245,747.32, 368,670.18 and 77,310.02

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Solution

The fourth proportional to 245,747.32, 368,670.18 and 77,310.02 is: 115,980.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,747.32 : 368,670.18 = 77,310.02 : x
  2. Step 2: Convert to fraction form
    245,747.32/368,670.18 = 77,310.02/x
  3. Step 3: Cross multiply
    245,747.32x = 368,670.18 × 77,310.02
  4. Step 4: Simplify right side
    245,747.32x = 28,501,898,989.20
  5. Step 5: Solve for x
    x = 28,501,898,989.20/245,747.32
  6. Step 6: Final answer
    x = 115,980.51

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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.