Home / 402,925.92-556,026.48-221,637.66

Finding the Fourth Proportional to 402,925.92, 556,026.48 and 221,637.66

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Solution

The fourth proportional to 402,925.92, 556,026.48 and 221,637.66 is: 305,853.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,925.92 : 556,026.48 = 221,637.66 : x
  2. Step 2: Convert to fraction form
    402,925.92/556,026.48 = 221,637.66/x
  3. Step 3: Cross multiply
    402,925.92x = 556,026.48 × 221,637.66
  4. Step 4: Simplify right side
    402,925.92x = 123,236,407,925.24
  5. Step 5: Solve for x
    x = 123,236,407,925.24/402,925.92
  6. Step 6: Final answer
    x = 305,853.76

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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.