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Finding the Fourth Proportional to 372,415.50, 513,929.07 and 202,646.70

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Solution

The fourth proportional to 372,415.50, 513,929.07 and 202,646.70 is: 279,650.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,415.50 : 513,929.07 = 202,646.70 : x
  2. Step 2: Convert to fraction form
    372,415.50/513,929.07 = 202,646.70/x
  3. Step 3: Cross multiply
    372,415.50x = 513,929.07 × 202,646.70
  4. Step 4: Simplify right side
    372,415.50x = 104,146,030,069.57
  5. Step 5: Solve for x
    x = 104,146,030,069.57/372,415.50
  6. Step 6: Final answer
    x = 279,650.10

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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.