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Finding the Fourth Proportional to 610,730.64, 916,228.80 and 190,040.40

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Solution

The fourth proportional to 610,730.64, 916,228.80 and 190,040.40 is: 285,101.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,730.64 : 916,228.80 = 190,040.40 : x
  2. Step 2: Convert to fraction form
    610,730.64/916,228.80 = 190,040.40/x
  3. Step 3: Cross multiply
    610,730.64x = 916,228.80 × 190,040.40
  4. Step 4: Simplify right side
    610,730.64x = 174,120,487,643.52
  5. Step 5: Solve for x
    x = 174,120,487,643.52/610,730.64
  6. Step 6: Final answer
    x = 285,101.94

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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.