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Finding the Fourth Proportional to 426,365.90, 639,211.48 and 160,096.76

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Solution

The fourth proportional to 426,365.90, 639,211.48 and 160,096.76 is: 240,018.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,365.90 : 639,211.48 = 160,096.76 : x
  2. Step 2: Convert to fraction form
    426,365.90/639,211.48 = 160,096.76/x
  3. Step 3: Cross multiply
    426,365.90x = 639,211.48 × 160,096.76
  4. Step 4: Simplify right side
    426,365.90x = 102,335,683,306.51
  5. Step 5: Solve for x
    x = 102,335,683,306.51/426,365.90
  6. Step 6: Final answer
    x = 240,018.45

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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.