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Finding the Fourth Proportional to 290,973.06, 436,350.69 and 101,384.76

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Solution

The fourth proportional to 290,973.06, 436,350.69 and 101,384.76 is: 152,039.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,973.06 : 436,350.69 = 101,384.76 : x
  2. Step 2: Convert to fraction form
    290,973.06/436,350.69 = 101,384.76/x
  3. Step 3: Cross multiply
    290,973.06x = 436,350.69 × 101,384.76
  4. Step 4: Simplify right side
    290,973.06x = 44,239,309,981.48
  5. Step 5: Solve for x
    x = 44,239,309,981.48/290,973.06
  6. Step 6: Final answer
    x = 152,039.20

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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.