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Finding the Fourth Proportional to 243,475.78, 336,210.33 and 152,988.52

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Solution

The fourth proportional to 243,475.78, 336,210.33 and 152,988.52 is: 211,258.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,475.78 : 336,210.33 = 152,988.52 : x
  2. Step 2: Convert to fraction form
    243,475.78/336,210.33 = 152,988.52/x
  3. Step 3: Cross multiply
    243,475.78x = 336,210.33 × 152,988.52
  4. Step 4: Simplify right side
    243,475.78x = 51,436,320,795.41
  5. Step 5: Solve for x
    x = 51,436,320,795.41/243,475.78
  6. Step 6: Final answer
    x = 211,258.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.