Home / 402,947.04-556,063.85-221,655.07

Finding the Fourth Proportional to 402,947.04, 556,063.85 and 221,655.07

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Solution

The fourth proportional to 402,947.04, 556,063.85 and 221,655.07 is: 305,882.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,947.04 : 556,063.85 = 221,655.07 : x
  2. Step 2: Convert to fraction form
    402,947.04/556,063.85 = 221,655.07/x
  3. Step 3: Cross multiply
    402,947.04x = 556,063.85 × 221,655.07
  4. Step 4: Simplify right side
    402,947.04x = 123,254,371,596.22
  5. Step 5: Solve for x
    x = 123,254,371,596.22/402,947.04
  6. Step 6: Final answer
    x = 305,882.31

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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.