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Finding the Fourth Proportional to 266,720.80, 368,109.52 and 153,548.32

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Solution

The fourth proportional to 266,720.80, 368,109.52 and 153,548.32 is: 211,916.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,720.80 : 368,109.52 = 153,548.32 : x
  2. Step 2: Convert to fraction form
    266,720.80/368,109.52 = 153,548.32/x
  3. Step 3: Cross multiply
    266,720.80x = 368,109.52 × 153,548.32
  4. Step 4: Simplify right side
    266,720.80x = 56,522,598,372.01
  5. Step 5: Solve for x
    x = 56,522,598,372.01/266,720.80
  6. Step 6: Final answer
    x = 211,916.72

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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.