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Finding the Fourth Proportional to 434,730, 652,153.32 and 185,470.32

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Solution

The fourth proportional to 434,730, 652,153.32 and 185,470.32 is: 278,230.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,730 : 652,153.32 = 185,470.32 : x
  2. Step 2: Convert to fraction form
    434,730/652,153.32 = 185,470.32/x
  3. Step 3: Cross multiply
    434,730x = 652,153.32 × 185,470.32
  4. Step 4: Simplify right side
    434,730x = 120,955,084,949.46
  5. Step 5: Solve for x
    x = 120,955,084,949.46/434,730
  6. Step 6: Final answer
    x = 278,230.36

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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.