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Finding the Fourth Proportional to 266,776.30, 368,154.15 and 145,915.00

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Solution

The fourth proportional to 266,776.30, 368,154.15 and 145,915.00 is: 201,364.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,776.30 : 368,154.15 = 145,915.00 : x
  2. Step 2: Convert to fraction form
    266,776.30/368,154.15 = 145,915.00/x
  3. Step 3: Cross multiply
    266,776.30x = 368,154.15 × 145,915.00
  4. Step 4: Simplify right side
    266,776.30x = 53,719,210,226.90
  5. Step 5: Solve for x
    x = 53,719,210,226.90/266,776.30
  6. Step 6: Final answer
    x = 201,364.25

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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.