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Finding the Fourth Proportional to 369,849.60, 510,406.92 and 216,866.52

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Solution

The fourth proportional to 369,849.60, 510,406.92 and 216,866.52 is: 299,284.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,849.60 : 510,406.92 = 216,866.52 : x
  2. Step 2: Convert to fraction form
    369,849.60/510,406.92 = 216,866.52/x
  3. Step 3: Cross multiply
    369,849.60x = 510,406.92 × 216,866.52
  4. Step 4: Simplify right side
    369,849.60x = 110,690,172,524.32
  5. Step 5: Solve for x
    x = 110,690,172,524.32/369,849.60
  6. Step 6: Final answer
    x = 299,284.28

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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.