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Finding the Fourth Proportional to 402,901.56, 556,005.33 and 221,632.07

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Solution

The fourth proportional to 402,901.56, 556,005.33 and 221,632.07 is: 305,852.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,901.56 : 556,005.33 = 221,632.07 : x
  2. Step 2: Convert to fraction form
    402,901.56/556,005.33 = 221,632.07/x
  3. Step 3: Cross multiply
    402,901.56x = 556,005.33 × 221,632.07
  4. Step 4: Simplify right side
    402,901.56x = 123,228,609,438.91
  5. Step 5: Solve for x
    x = 123,228,609,438.91/402,901.56
  6. Step 6: Final answer
    x = 305,852.90

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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.