Home / 238,288.30-328,845.51-137,686.30

Finding the Fourth Proportional to 238,288.30, 328,845.51 and 137,686.30

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Solution

The fourth proportional to 238,288.30, 328,845.51 and 137,686.30 is: 190,011.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,288.30 : 328,845.51 = 137,686.30 : x
  2. Step 2: Convert to fraction form
    238,288.30/328,845.51 = 137,686.30/x
  3. Step 3: Cross multiply
    238,288.30x = 328,845.51 × 137,686.30
  4. Step 4: Simplify right side
    238,288.30x = 45,277,521,543.51
  5. Step 5: Solve for x
    x = 45,277,521,543.51/238,288.30
  6. Step 6: Final answer
    x = 190,011.52

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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.