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Finding the Fourth Proportional to 302,947.39, 454,281.39 and 89,639.02

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Solution

The fourth proportional to 302,947.39, 454,281.39 and 89,639.02 is: 134,417.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,947.39 : 454,281.39 = 89,639.02 : x
  2. Step 2: Convert to fraction form
    302,947.39/454,281.39 = 89,639.02/x
  3. Step 3: Cross multiply
    302,947.39x = 454,281.39 × 89,639.02
  4. Step 4: Simplify right side
    302,947.39x = 40,721,338,603.84
  5. Step 5: Solve for x
    x = 40,721,338,603.84/302,947.39
  6. Step 6: Final answer
    x = 134,417.20

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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.