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Finding the Fourth Proportional to 370,153.02, 510,811.35 and 200,387.15

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Solution

The fourth proportional to 370,153.02, 510,811.35 and 200,387.15 is: 276,534.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,153.02 : 510,811.35 = 200,387.15 : x
  2. Step 2: Convert to fraction form
    370,153.02/510,811.35 = 200,387.15/x
  3. Step 3: Cross multiply
    370,153.02x = 510,811.35 × 200,387.15
  4. Step 4: Simplify right side
    370,153.02x = 102,360,029,224.19
  5. Step 5: Solve for x
    x = 102,360,029,224.19/370,153.02
  6. Step 6: Final answer
    x = 276,534.36

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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.