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Finding the Fourth Proportional to 660,312.32, 990,510.60 and 187,034.18

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Solution

The fourth proportional to 660,312.32, 990,510.60 and 187,034.18 is: 280,563.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,312.32 : 990,510.60 = 187,034.18 : x
  2. Step 2: Convert to fraction form
    660,312.32/990,510.60 = 187,034.18/x
  3. Step 3: Cross multiply
    660,312.32x = 990,510.60 × 187,034.18
  4. Step 4: Simplify right side
    660,312.32x = 185,259,337,852.31
  5. Step 5: Solve for x
    x = 185,259,337,852.31/660,312.32
  6. Step 6: Final answer
    x = 280,563.20

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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.