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Finding the Fourth Proportional to 304,031.61, 456,112.62 and 90,816.30

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Solution

The fourth proportional to 304,031.61, 456,112.62 and 90,816.30 is: 136,243.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,031.61 : 456,112.62 = 90,816.30 : x
  2. Step 2: Convert to fraction form
    304,031.61/456,112.62 = 90,816.30/x
  3. Step 3: Cross multiply
    304,031.61x = 456,112.62 × 90,816.30
  4. Step 4: Simplify right side
    304,031.61x = 41,422,460,531.71
  5. Step 5: Solve for x
    x = 41,422,460,531.71/304,031.61
  6. Step 6: Final answer
    x = 136,243.93

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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.