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Finding the Fourth Proportional to 369,021.70, 553,532.55 and 254,860.30

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Solution

The fourth proportional to 369,021.70, 553,532.55 and 254,860.30 is: 382,290.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,021.70 : 553,532.55 = 254,860.30 : x
  2. Step 2: Convert to fraction form
    369,021.70/553,532.55 = 254,860.30/x
  3. Step 3: Cross multiply
    369,021.70x = 553,532.55 × 254,860.30
  4. Step 4: Simplify right side
    369,021.70x = 141,073,471,752.77
  5. Step 5: Solve for x
    x = 141,073,471,752.77/369,021.70
  6. Step 6: Final answer
    x = 382,290.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.