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Finding the Fourth Proportional to 242,320.97, 334,434.33 and 138,995.48

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Solution

The fourth proportional to 242,320.97, 334,434.33 and 138,995.48 is: 191,831.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,320.97 : 334,434.33 = 138,995.48 : x
  2. Step 2: Convert to fraction form
    242,320.97/334,434.33 = 138,995.48/x
  3. Step 3: Cross multiply
    242,320.97x = 334,434.33 × 138,995.48
  4. Step 4: Simplify right side
    242,320.97x = 46,484,858,554.66
  5. Step 5: Solve for x
    x = 46,484,858,554.66/242,320.97
  6. Step 6: Final answer
    x = 191,831.77

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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.