Home / 353,683.50-487,002.38-266,595.12

Finding the Fourth Proportional to 353,683.50, 487,002.38 and 266,595.12

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Solution

The fourth proportional to 353,683.50, 487,002.38 and 266,595.12 is: 367,086.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,683.50 : 487,002.38 = 266,595.12 : x
  2. Step 2: Convert to fraction form
    353,683.50/487,002.38 = 266,595.12/x
  3. Step 3: Cross multiply
    353,683.50x = 487,002.38 × 266,595.12
  4. Step 4: Simplify right side
    353,683.50x = 129,832,456,603.41
  5. Step 5: Solve for x
    x = 129,832,456,603.41/353,683.50
  6. Step 6: Final answer
    x = 367,086.55

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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.