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Finding the Fourth Proportional to 371,348.76, 512,460.78 and 201,582.90

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Solution

The fourth proportional to 371,348.76, 512,460.78 and 201,582.90 is: 278,184.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,348.76 : 512,460.78 = 201,582.90 : x
  2. Step 2: Convert to fraction form
    371,348.76/512,460.78 = 201,582.90/x
  3. Step 3: Cross multiply
    371,348.76x = 512,460.78 × 201,582.90
  4. Step 4: Simplify right side
    371,348.76x = 103,303,330,168.66
  5. Step 5: Solve for x
    x = 103,303,330,168.66/371,348.76
  6. Step 6: Final answer
    x = 278,184.13

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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.