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Finding the Fourth Proportional to 243,034.80, 364,552.20 and 138,058.80

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Solution

The fourth proportional to 243,034.80, 364,552.20 and 138,058.80 is: 207,088.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,034.80 : 364,552.20 = 138,058.80 : x
  2. Step 2: Convert to fraction form
    243,034.80/364,552.20 = 138,058.80/x
  3. Step 3: Cross multiply
    243,034.80x = 364,552.20 × 138,058.80
  4. Step 4: Simplify right side
    243,034.80x = 50,329,639,269.36
  5. Step 5: Solve for x
    x = 50,329,639,269.36/243,034.80
  6. Step 6: Final answer
    x = 207,088.20

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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.