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Finding the Fourth Proportional to 438,026.16, 604,476 and 247,039.14

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Solution

The fourth proportional to 438,026.16, 604,476 and 247,039.14 is: 340,913.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,026.16 : 604,476 = 247,039.14 : x
  2. Step 2: Convert to fraction form
    438,026.16/604,476 = 247,039.14/x
  3. Step 3: Cross multiply
    438,026.16x = 604,476 × 247,039.14
  4. Step 4: Simplify right side
    438,026.16x = 149,329,231,190.64
  5. Step 5: Solve for x
    x = 149,329,231,190.64/438,026.16
  6. Step 6: Final answer
    x = 340,913.96

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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.