Home / 385,031.03-531,129.51-223,868.27

Finding the Fourth Proportional to 385,031.03, 531,129.51 and 223,868.27

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Solution

The fourth proportional to 385,031.03, 531,129.51 and 223,868.27 is: 308,814.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,031.03 : 531,129.51 = 223,868.27 : x
  2. Step 2: Convert to fraction form
    385,031.03/531,129.51 = 223,868.27/x
  3. Step 3: Cross multiply
    385,031.03x = 531,129.51 × 223,868.27
  4. Step 4: Simplify right side
    385,031.03x = 118,903,041,894.00
  5. Step 5: Solve for x
    x = 118,903,041,894.00/385,031.03
  6. Step 6: Final answer
    x = 308,814.18

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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.