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Finding the Fourth Proportional to 369,019.70, 553,529.55 and 254,858.30

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Solution

The fourth proportional to 369,019.70, 553,529.55 and 254,858.30 is: 382,287.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,019.70 : 553,529.55 = 254,858.30 : x
  2. Step 2: Convert to fraction form
    369,019.70/553,529.55 = 254,858.30/x
  3. Step 3: Cross multiply
    369,019.70x = 553,529.55 × 254,858.30
  4. Step 4: Simplify right side
    369,019.70x = 141,071,600,112.77
  5. Step 5: Solve for x
    x = 141,071,600,112.77/369,019.70
  6. Step 6: Final answer
    x = 382,287.45

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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.