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Finding the Fourth Proportional to 290,374.08, 435,588.06 and 112,894.58

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Solution

The fourth proportional to 290,374.08, 435,588.06 and 112,894.58 is: 169,352.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,374.08 : 435,588.06 = 112,894.58 : x
  2. Step 2: Convert to fraction form
    290,374.08/435,588.06 = 112,894.58/x
  3. Step 3: Cross multiply
    290,374.08x = 435,588.06 × 112,894.58
  4. Step 4: Simplify right side
    290,374.08x = 49,175,528,908.77
  5. Step 5: Solve for x
    x = 49,175,528,908.77/290,374.08
  6. Step 6: Final answer
    x = 169,352.34

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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.