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Finding the Fourth Proportional to 348,030.40, 521,624.40 and 147,930.70

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Solution

The fourth proportional to 348,030.40, 521,624.40 and 147,930.70 is: 221,717.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,030.40 : 521,624.40 = 147,930.70 : x
  2. Step 2: Convert to fraction form
    348,030.40/521,624.40 = 147,930.70/x
  3. Step 3: Cross multiply
    348,030.40x = 521,624.40 × 147,930.70
  4. Step 4: Simplify right side
    348,030.40x = 77,164,262,629.08
  5. Step 5: Solve for x
    x = 77,164,262,629.08/348,030.40
  6. Step 6: Final answer
    x = 221,717.02

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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.