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Finding the Fourth Proportional to 660,292.90, 990,150.90 and 233,686.92

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Solution

The fourth proportional to 660,292.90, 990,150.90 and 233,686.92 is: 350,428.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,292.90 : 990,150.90 = 233,686.92 : x
  2. Step 2: Convert to fraction form
    660,292.90/990,150.90 = 233,686.92/x
  3. Step 3: Cross multiply
    660,292.90x = 990,150.90 × 233,686.92
  4. Step 4: Simplify right side
    660,292.90x = 231,385,314,156.23
  5. Step 5: Solve for x
    x = 231,385,314,156.23/660,292.90
  6. Step 6: Final answer
    x = 350,428.29

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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.