Home / 243,346.76-335,815.02-135,918.35

Finding the Fourth Proportional to 243,346.76, 335,815.02 and 135,918.35

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Solution

The fourth proportional to 243,346.76, 335,815.02 and 135,918.35 is: 187,565.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,346.76 : 335,815.02 = 135,918.35 : x
  2. Step 2: Convert to fraction form
    243,346.76/335,815.02 = 135,918.35/x
  3. Step 3: Cross multiply
    243,346.76x = 335,815.02 × 135,918.35
  4. Step 4: Simplify right side
    243,346.76x = 45,643,423,423.62
  5. Step 5: Solve for x
    x = 45,643,423,423.62/243,346.76
  6. Step 6: Final answer
    x = 187,565.36

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1.5x scale

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.