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Finding the Fourth Proportional to 372,316.40, 513,800.56 and 202,550.16

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Solution

The fourth proportional to 372,316.40, 513,800.56 and 202,550.16 is: 279,521.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,316.40 : 513,800.56 = 202,550.16 : x
  2. Step 2: Convert to fraction form
    372,316.40/513,800.56 = 202,550.16/x
  3. Step 3: Cross multiply
    372,316.40x = 513,800.56 × 202,550.16
  4. Step 4: Simplify right side
    372,316.40x = 104,070,385,636.09
  5. Step 5: Solve for x
    x = 104,070,385,636.09/372,316.40
  6. Step 6: Final answer
    x = 279,521.36

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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.