Home / 402,948.04-556,065.23-221,656.07

Finding the Fourth Proportional to 402,948.04, 556,065.23 and 221,656.07

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Solution

The fourth proportional to 402,948.04, 556,065.23 and 221,656.07 is: 305,883.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,948.04 : 556,065.23 = 221,656.07 : x
  2. Step 2: Convert to fraction form
    402,948.04/556,065.23 = 221,656.07/x
  3. Step 3: Cross multiply
    402,948.04x = 556,065.23 × 221,656.07
  4. Step 4: Simplify right side
    402,948.04x = 123,255,233,545.45
  5. Step 5: Solve for x
    x = 123,255,233,545.45/402,948.04
  6. Step 6: Final answer
    x = 305,883.69

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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.