Home / 266,981.51-368,567.79-153,782.39

Finding the Fourth Proportional to 266,981.51, 368,567.79 and 153,782.39

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Solution

The fourth proportional to 266,981.51, 368,567.79 and 153,782.39 is: 212,296.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,981.51 : 368,567.79 = 153,782.39 : x
  2. Step 2: Convert to fraction form
    266,981.51/368,567.79 = 153,782.39/x
  3. Step 3: Cross multiply
    266,981.51x = 368,567.79 × 153,782.39
  4. Step 4: Simplify right side
    266,981.51x = 56,679,235,623.22
  5. Step 5: Solve for x
    x = 56,679,235,623.22/266,981.51
  6. Step 6: Final answer
    x = 212,296.48

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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.