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Finding the Fourth Proportional to 324,127.61, 486,192.57 and 99,488.06

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Solution

The fourth proportional to 324,127.61, 486,192.57 and 99,488.06 is: 149,232.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,127.61 : 486,192.57 = 99,488.06 : x
  2. Step 2: Convert to fraction form
    324,127.61/486,192.57 = 99,488.06/x
  3. Step 3: Cross multiply
    324,127.61x = 486,192.57 × 99,488.06
  4. Step 4: Simplify right side
    324,127.61x = 48,370,356,991.83
  5. Step 5: Solve for x
    x = 48,370,356,991.83/324,127.61
  6. Step 6: Final answer
    x = 149,232.45

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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.