Home / 266,979.51-368,565.03-153,780.39

Finding the Fourth Proportional to 266,979.51, 368,565.03 and 153,780.39

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Solution

The fourth proportional to 266,979.51, 368,565.03 and 153,780.39 is: 212,293.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,979.51 : 368,565.03 = 153,780.39 : x
  2. Step 2: Convert to fraction form
    266,979.51/368,565.03 = 153,780.39/x
  3. Step 3: Cross multiply
    266,979.51x = 368,565.03 × 153,780.39
  4. Step 4: Simplify right side
    266,979.51x = 56,678,074,053.76
  5. Step 5: Solve for x
    x = 56,678,074,053.76/266,979.51
  6. Step 6: Final answer
    x = 212,293.72

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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.