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Finding the Fourth Proportional to 253,293.48, 349,547.76 and 138,569.67

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Solution

The fourth proportional to 253,293.48, 349,547.76 and 138,569.67 is: 191,227.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,293.48 : 349,547.76 = 138,569.67 : x
  2. Step 2: Convert to fraction form
    253,293.48/349,547.76 = 138,569.67/x
  3. Step 3: Cross multiply
    253,293.48x = 349,547.76 × 138,569.67
  4. Step 4: Simplify right side
    253,293.48x = 48,436,717,752.44
  5. Step 5: Solve for x
    x = 48,436,717,752.44/253,293.48
  6. Step 6: Final answer
    x = 191,227.65

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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.