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Finding the Fourth Proportional to 342,973.38, 473,184.81 and 215,658.66

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Solution

The fourth proportional to 342,973.38, 473,184.81 and 215,658.66 is: 297,534.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,973.38 : 473,184.81 = 215,658.66 : x
  2. Step 2: Convert to fraction form
    342,973.38/473,184.81 = 215,658.66/x
  3. Step 3: Cross multiply
    342,973.38x = 473,184.81 × 215,658.66
  4. Step 4: Simplify right side
    342,973.38x = 102,046,402,056.96
  5. Step 5: Solve for x
    x = 102,046,402,056.96/342,973.38
  6. Step 6: Final answer
    x = 297,534.47

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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.