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Finding the Fourth Proportional to 266,307.38, 367,502.21 and 145,448.72

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Solution

The fourth proportional to 266,307.38, 367,502.21 and 145,448.72 is: 200,718.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,307.38 : 367,502.21 = 145,448.72 : x
  2. Step 2: Convert to fraction form
    266,307.38/367,502.21 = 145,448.72/x
  3. Step 3: Cross multiply
    266,307.38x = 367,502.21 × 145,448.72
  4. Step 4: Simplify right side
    266,307.38x = 53,452,726,041.67
  5. Step 5: Solve for x
    x = 53,452,726,041.67/266,307.38
  6. Step 6: Final answer
    x = 200,718.16

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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.