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Finding the Fourth Proportional to 369,719.75, 510,218.18 and 208,574.30

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Solution

The fourth proportional to 369,719.75, 510,218.18 and 208,574.30 is: 287,835.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,719.75 : 510,218.18 = 208,574.30 : x
  2. Step 2: Convert to fraction form
    369,719.75/510,218.18 = 208,574.30/x
  3. Step 3: Cross multiply
    369,719.75x = 510,218.18 × 208,574.30
  4. Step 4: Simplify right side
    369,719.75x = 106,418,401,537.76
  5. Step 5: Solve for x
    x = 106,418,401,537.76/369,719.75
  6. Step 6: Final answer
    x = 287,835.32

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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.