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Finding the Fourth Proportional to 561,856.40, 842,893.95 and 162,510.20

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Solution

The fourth proportional to 561,856.40, 842,893.95 and 162,510.20 is: 243,796.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,856.40 : 842,893.95 = 162,510.20 : x
  2. Step 2: Convert to fraction form
    561,856.40/842,893.95 = 162,510.20/x
  3. Step 3: Cross multiply
    561,856.40x = 842,893.95 × 162,510.20
  4. Step 4: Simplify right side
    561,856.40x = 136,978,864,393.29
  5. Step 5: Solve for x
    x = 136,978,864,393.29/561,856.40
  6. Step 6: Final answer
    x = 243,796.93

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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.