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Finding the Fourth Proportional to 401,510.85, 554,085.77 and 220,224.26

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Solution

The fourth proportional to 401,510.85, 554,085.77 and 220,224.26 is: 303,909.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,510.85 : 554,085.77 = 220,224.26 : x
  2. Step 2: Convert to fraction form
    401,510.85/554,085.77 = 220,224.26/x
  3. Step 3: Cross multiply
    401,510.85x = 554,085.77 × 220,224.26
  4. Step 4: Simplify right side
    401,510.85x = 122,023,124,803.23
  5. Step 5: Solve for x
    x = 122,023,124,803.23/401,510.85
  6. Step 6: Final answer
    x = 303,909.91

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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.