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Finding the Fourth Proportional to 438,036.16, 604,489.80 and 247,049.14

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Solution

The fourth proportional to 438,036.16, 604,489.80 and 247,049.14 is: 340,927.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,036.16 : 604,489.80 = 247,049.14 : x
  2. Step 2: Convert to fraction form
    438,036.16/604,489.80 = 247,049.14/x
  3. Step 3: Cross multiply
    438,036.16x = 604,489.80 × 247,049.14
  4. Step 4: Simplify right side
    438,036.16x = 149,338,685,228.77
  5. Step 5: Solve for x
    x = 149,338,685,228.77/438,036.16
  6. Step 6: Final answer
    x = 340,927.76

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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.