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Finding the Fourth Proportional to 640,875.70, 961,230.12 and 167,597.56

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Solution

The fourth proportional to 640,875.70, 961,230.12 and 167,597.56 is: 251,374.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,875.70 : 961,230.12 = 167,597.56 : x
  2. Step 2: Convert to fraction form
    640,875.70/961,230.12 = 167,597.56/x
  3. Step 3: Cross multiply
    640,875.70x = 961,230.12 × 167,597.56
  4. Step 4: Simplify right side
    640,875.70x = 161,099,822,710.51
  5. Step 5: Solve for x
    x = 161,099,822,710.51/640,875.70
  6. Step 6: Final answer
    x = 251,374.52

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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.