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Finding the Fourth Proportional to 320,881.18, 442,798.46 and 175,658.87

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Solution

The fourth proportional to 320,881.18, 442,798.46 and 175,658.87 is: 242,399.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,881.18 : 442,798.46 = 175,658.87 : x
  2. Step 2: Convert to fraction form
    320,881.18/442,798.46 = 175,658.87/x
  3. Step 3: Cross multiply
    320,881.18x = 442,798.46 × 175,658.87
  4. Step 4: Simplify right side
    320,881.18x = 77,781,477,121.34
  5. Step 5: Solve for x
    x = 77,781,477,121.34/320,881.18
  6. Step 6: Final answer
    x = 242,399.63

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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.