Home / 666,870.55-1,000,308.43-161,430.70

Finding the Fourth Proportional to 666,870.55, 1,000,308.43 and 161,430.70

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Solution

The fourth proportional to 666,870.55, 1,000,308.43 and 161,430.70 is: 242,146.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,870.55 : 1,000,308.43 = 161,430.70 : x
  2. Step 2: Convert to fraction form
    666,870.55/1,000,308.43 = 161,430.70/x
  3. Step 3: Cross multiply
    666,870.55x = 1,000,308.43 × 161,430.70
  4. Step 4: Simplify right side
    666,870.55x = 161,480,489,374.77
  5. Step 5: Solve for x
    x = 161,480,489,374.77/666,870.55
  6. Step 6: Final answer
    x = 242,146.68

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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.