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Finding the Fourth Proportional to 288,332.76, 397,897.62 and 159,280.11

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Solution

The fourth proportional to 288,332.76, 397,897.62 and 159,280.11 is: 219,805.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,332.76 : 397,897.62 = 159,280.11 : x
  2. Step 2: Convert to fraction form
    288,332.76/397,897.62 = 159,280.11/x
  3. Step 3: Cross multiply
    288,332.76x = 397,897.62 × 159,280.11
  4. Step 4: Simplify right side
    288,332.76x = 63,377,176,682.34
  5. Step 5: Solve for x
    x = 63,377,176,682.34/288,332.76
  6. Step 6: Final answer
    x = 219,805.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.