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Finding the Fourth Proportional to 372,574.92, 514,140.30 and 202,805.40

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Solution

The fourth proportional to 372,574.92, 514,140.30 and 202,805.40 is: 279,864.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,574.92 : 514,140.30 = 202,805.40 : x
  2. Step 2: Convert to fraction form
    372,574.92/514,140.30 = 202,805.40/x
  3. Step 3: Cross multiply
    372,574.92x = 514,140.30 × 202,805.40
  4. Step 4: Simplify right side
    372,574.92x = 104,270,429,197.62
  5. Step 5: Solve for x
    x = 104,270,429,197.62/372,574.92
  6. Step 6: Final answer
    x = 279,864.33

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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.