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Finding the Fourth Proportional to 266,878.80, 368,203.32 and 153,699.12

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Solution

The fourth proportional to 266,878.80, 368,203.32 and 153,699.12 is: 212,053.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,878.80 : 368,203.32 = 153,699.12 : x
  2. Step 2: Convert to fraction form
    266,878.80/368,203.32 = 153,699.12/x
  3. Step 3: Cross multiply
    266,878.80x = 368,203.32 × 153,699.12
  4. Step 4: Simplify right side
    266,878.80x = 56,592,526,265.08
  5. Step 5: Solve for x
    x = 56,592,526,265.08/266,878.80
  6. Step 6: Final answer
    x = 212,053.29

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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.