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Finding the Fourth Proportional to 402,903.02, 555,994.44 and 221,614.92

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Solution

The fourth proportional to 402,903.02, 555,994.44 and 221,614.92 is: 305,822.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,903.02 : 555,994.44 = 221,614.92 : x
  2. Step 2: Convert to fraction form
    402,903.02/555,994.44 = 221,614.92/x
  3. Step 3: Cross multiply
    402,903.02x = 555,994.44 × 221,614.92
  4. Step 4: Simplify right side
    402,903.02x = 123,216,663,341.05
  5. Step 5: Solve for x
    x = 123,216,663,341.05/402,903.02
  6. Step 6: Final answer
    x = 305,822.14

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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.