Home / 402,001.53-554,763.23-220,725.20

Finding the Fourth Proportional to 402,001.53, 554,763.23 and 220,725.20

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Solution

The fourth proportional to 402,001.53, 554,763.23 and 220,725.20 is: 304,601.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,001.53 : 554,763.23 = 220,725.20 : x
  2. Step 2: Convert to fraction form
    402,001.53/554,763.23 = 220,725.20/x
  3. Step 3: Cross multiply
    402,001.53x = 554,763.23 × 220,725.20
  4. Step 4: Simplify right side
    402,001.53x = 122,450,226,005.40
  5. Step 5: Solve for x
    x = 122,450,226,005.40/402,001.53
  6. Step 6: Final answer
    x = 304,601.39

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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.