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Finding the Fourth Proportional to 611,296.32, 915,859.68 and 255,526.08

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Solution

The fourth proportional to 611,296.32, 915,859.68 and 255,526.08 is: 382,835.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,296.32 : 915,859.68 = 255,526.08 : x
  2. Step 2: Convert to fraction form
    611,296.32/915,859.68 = 255,526.08/x
  3. Step 3: Cross multiply
    611,296.32x = 915,859.68 × 255,526.08
  4. Step 4: Simplify right side
    611,296.32x = 234,026,033,860.45
  5. Step 5: Solve for x
    x = 234,026,033,860.45/611,296.32
  6. Step 6: Final answer
    x = 382,835.67

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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.