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Finding the Fourth Proportional to 438,124.72, 604,612.12 and 236,920.72

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Solution

The fourth proportional to 438,124.72, 604,612.12 and 236,920.72 is: 326,950.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,124.72 : 604,612.12 = 236,920.72 : x
  2. Step 2: Convert to fraction form
    438,124.72/604,612.12 = 236,920.72/x
  3. Step 3: Cross multiply
    438,124.72x = 604,612.12 × 236,920.72
  4. Step 4: Simplify right side
    438,124.72x = 143,245,138,791.13
  5. Step 5: Solve for x
    x = 143,245,138,791.13/438,124.72
  6. Step 6: Final answer
    x = 326,950.60

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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.