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Finding the Fourth Proportional to 318,771, 439,903.98 and 175,530.74

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Solution

The fourth proportional to 318,771, 439,903.98 and 175,530.74 is: 242,232.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,771 : 439,903.98 = 175,530.74 : x
  2. Step 2: Convert to fraction form
    318,771/439,903.98 = 175,530.74/x
  3. Step 3: Cross multiply
    318,771x = 439,903.98 × 175,530.74
  4. Step 4: Simplify right side
    318,771x = 77,216,668,938.83
  5. Step 5: Solve for x
    x = 77,216,668,938.83/318,771
  6. Step 6: Final answer
    x = 242,232.41

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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.