Home / 385,026.10-531,309.04-223,869.72

Finding the Fourth Proportional to 385,026.10, 531,309.04 and 223,869.72

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Solution

The fourth proportional to 385,026.10, 531,309.04 and 223,869.72 is: 308,924.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,026.10 : 531,309.04 = 223,869.72 : x
  2. Step 2: Convert to fraction form
    385,026.10/531,309.04 = 223,869.72/x
  3. Step 3: Cross multiply
    385,026.10x = 531,309.04 × 223,869.72
  4. Step 4: Simplify right side
    385,026.10x = 118,944,006,018.27
  5. Step 5: Solve for x
    x = 118,944,006,018.27/385,026.10
  6. Step 6: Final answer
    x = 308,924.53

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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.