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Finding the Fourth Proportional to 385,838.32, 532,279.62 and 249,917.62

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Solution

The fourth proportional to 385,838.32, 532,279.62 and 249,917.62 is: 344,771.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,838.32 : 532,279.62 = 249,917.62 : x
  2. Step 2: Convert to fraction form
    385,838.32/532,279.62 = 249,917.62/x
  3. Step 3: Cross multiply
    385,838.32x = 532,279.62 × 249,917.62
  4. Step 4: Simplify right side
    385,838.32x = 133,026,055,804.90
  5. Step 5: Solve for x
    x = 133,026,055,804.90/385,838.32
  6. Step 6: Final answer
    x = 344,771.50

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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.