Home / 402,136.14-554,948.37-220,859.76

Finding the Fourth Proportional to 402,136.14, 554,948.37 and 220,859.76

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Solution

The fourth proportional to 402,136.14, 554,948.37 and 220,859.76 is: 304,786.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,136.14 : 554,948.37 = 220,859.76 : x
  2. Step 2: Convert to fraction form
    402,136.14/554,948.37 = 220,859.76/x
  3. Step 3: Cross multiply
    402,136.14x = 554,948.37 × 220,859.76
  4. Step 4: Simplify right side
    402,136.14x = 122,565,763,810.59
  5. Step 5: Solve for x
    x = 122,565,763,810.59/402,136.14
  6. Step 6: Final answer
    x = 304,786.74

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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.