Home / 243,822.81-336,503.40-136,420.05

Finding the Fourth Proportional to 243,822.81, 336,503.40 and 136,420.05

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Solution

The fourth proportional to 243,822.81, 336,503.40 and 136,420.05 is: 188,275.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,822.81 : 336,503.40 = 136,420.05 : x
  2. Step 2: Convert to fraction form
    243,822.81/336,503.40 = 136,420.05/x
  3. Step 3: Cross multiply
    243,822.81x = 336,503.40 × 136,420.05
  4. Step 4: Simplify right side
    243,822.81x = 45,905,810,653.17
  5. Step 5: Solve for x
    x = 45,905,810,653.17/243,822.81
  6. Step 6: Final answer
    x = 188,275.29

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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.