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Finding the Fourth Proportional to 236,807.16, 355,266.53 and 76,870.74

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Solution

The fourth proportional to 236,807.16, 355,266.53 and 76,870.74 is: 115,324.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,807.16 : 355,266.53 = 76,870.74 : x
  2. Step 2: Convert to fraction form
    236,807.16/355,266.53 = 76,870.74/x
  3. Step 3: Cross multiply
    236,807.16x = 355,266.53 × 76,870.74
  4. Step 4: Simplify right side
    236,807.16x = 27,309,602,385.79
  5. Step 5: Solve for x
    x = 27,309,602,385.79/236,807.16
  6. Step 6: Final answer
    x = 115,324.22

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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.