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Finding the Fourth Proportional to 342,502.67, 472,646.23 and 187,453.21

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Solution

The fourth proportional to 342,502.67, 472,646.23 and 187,453.21 is: 258,681.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,502.67 : 472,646.23 = 187,453.21 : x
  2. Step 2: Convert to fraction form
    342,502.67/472,646.23 = 187,453.21/x
  3. Step 3: Cross multiply
    342,502.67x = 472,646.23 × 187,453.21
  4. Step 4: Simplify right side
    342,502.67x = 88,599,051,711.01
  5. Step 5: Solve for x
    x = 88,599,051,711.01/342,502.67
  6. Step 6: Final answer
    x = 258,681.35

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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.