Home / 402,902.02-555,966.20-221,611.06

Finding the Fourth Proportional to 402,902.02, 555,966.20 and 221,611.06

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Solution

The fourth proportional to 402,902.02, 555,966.20 and 221,611.06 is: 305,802.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,902.02 : 555,966.20 = 221,611.06 : x
  2. Step 2: Convert to fraction form
    402,902.02/555,966.20 = 221,611.06/x
  3. Step 3: Cross multiply
    402,902.02x = 555,966.20 × 221,611.06
  4. Step 4: Simplify right side
    402,902.02x = 123,208,258,906.17
  5. Step 5: Solve for x
    x = 123,208,258,906.17/402,902.02
  6. Step 6: Final answer
    x = 305,802.04

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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.