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Finding the Fourth Proportional to 210,084.64, 315,126.80 and 62,340.64

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Solution

The fourth proportional to 210,084.64, 315,126.80 and 62,340.64 is: 93,510.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,084.64 : 315,126.80 = 62,340.64 : x
  2. Step 2: Convert to fraction form
    210,084.64/315,126.80 = 62,340.64/x
  3. Step 3: Cross multiply
    210,084.64x = 315,126.80 × 62,340.64
  4. Step 4: Simplify right side
    210,084.64x = 19,645,206,393.15
  5. Step 5: Solve for x
    x = 19,645,206,393.15/210,084.64
  6. Step 6: Final answer
    x = 93,510.91

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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.