Home / 385,038.84-531,140.28-223,876.06

Finding the Fourth Proportional to 385,038.84, 531,140.28 and 223,876.06

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Solution

The fourth proportional to 385,038.84, 531,140.28 and 223,876.06 is: 308,824.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,038.84 : 531,140.28 = 223,876.06 : x
  2. Step 2: Convert to fraction form
    385,038.84/531,140.28 = 223,876.06/x
  3. Step 3: Cross multiply
    385,038.84x = 531,140.28 × 223,876.06
  4. Step 4: Simplify right side
    385,038.84x = 118,909,593,193.70
  5. Step 5: Solve for x
    x = 118,909,593,193.70/385,038.84
  6. Step 6: Final answer
    x = 308,824.93

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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.