Home / 243,780.14-336,434.16-136,384.74

Finding the Fourth Proportional to 243,780.14, 336,434.16 and 136,384.74

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Solution

The fourth proportional to 243,780.14, 336,434.16 and 136,384.74 is: 188,220.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,780.14 : 336,434.16 = 136,384.74 : x
  2. Step 2: Convert to fraction form
    243,780.14/336,434.16 = 136,384.74/x
  3. Step 3: Cross multiply
    243,780.14x = 336,434.16 × 136,384.74
  4. Step 4: Simplify right side
    243,780.14x = 45,884,485,438.72
  5. Step 5: Solve for x
    x = 45,884,485,438.72/243,780.14
  6. Step 6: Final answer
    x = 188,220.77

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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.