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Finding the Fourth Proportional to 266,909.76, 368,468.76 and 153,710.64

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Solution

The fourth proportional to 266,909.76, 368,468.76 and 153,710.64 is: 212,197.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,909.76 : 368,468.76 = 153,710.64 : x
  2. Step 2: Convert to fraction form
    266,909.76/368,468.76 = 153,710.64/x
  3. Step 3: Cross multiply
    266,909.76x = 368,468.76 × 153,710.64
  4. Step 4: Simplify right side
    266,909.76x = 56,637,568,919.61
  5. Step 5: Solve for x
    x = 56,637,568,919.61/266,909.76
  6. Step 6: Final answer
    x = 212,197.44

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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.