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Finding the Fourth Proportional to 290,248.40, 435,204.98 and 112,547.82

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Solution

The fourth proportional to 290,248.40, 435,204.98 and 112,547.82 is: 168,756.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,248.40 : 435,204.98 = 112,547.82 : x
  2. Step 2: Convert to fraction form
    290,248.40/435,204.98 = 112,547.82/x
  3. Step 3: Cross multiply
    290,248.40x = 435,204.98 × 112,547.82
  4. Step 4: Simplify right side
    290,248.40x = 48,981,371,752.14
  5. Step 5: Solve for x
    x = 48,981,371,752.14/290,248.40
  6. Step 6: Final answer
    x = 168,756.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.