Home / 434,730.40-652,095.60-154,211.20

Finding the Fourth Proportional to 434,730.40, 652,095.60 and 154,211.20

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Solution

The fourth proportional to 434,730.40, 652,095.60 and 154,211.20 is: 231,316.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,730.40 : 652,095.60 = 154,211.20 : x
  2. Step 2: Convert to fraction form
    434,730.40/652,095.60 = 154,211.20/x
  3. Step 3: Cross multiply
    434,730.40x = 652,095.60 × 154,211.20
  4. Step 4: Simplify right side
    434,730.40x = 100,560,444,990.72
  5. Step 5: Solve for x
    x = 100,560,444,990.72/434,730.40
  6. Step 6: Final answer
    x = 231,316.80

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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.