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Finding the Fourth Proportional to 245,545.40, 367,929.30 and 156,639.80

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Solution

The fourth proportional to 245,545.40, 367,929.30 and 156,639.80 is: 234,711.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,545.40 : 367,929.30 = 156,639.80 : x
  2. Step 2: Convert to fraction form
    245,545.40/367,929.30 = 156,639.80/x
  3. Step 3: Cross multiply
    245,545.40x = 367,929.30 × 156,639.80
  4. Step 4: Simplify right side
    245,545.40x = 57,632,371,966.14
  5. Step 5: Solve for x
    x = 57,632,371,966.14/245,545.40
  6. Step 6: Final answer
    x = 234,711.67

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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.