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Finding the Fourth Proportional to 401,490.40, 602,235.60 and 106,002.40

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Solution

The fourth proportional to 401,490.40, 602,235.60 and 106,002.40 is: 159,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,490.40 : 602,235.60 = 106,002.40 : x
  2. Step 2: Convert to fraction form
    401,490.40/602,235.60 = 106,002.40/x
  3. Step 3: Cross multiply
    401,490.40x = 602,235.60 × 106,002.40
  4. Step 4: Simplify right side
    401,490.40x = 63,838,418,965.44
  5. Step 5: Solve for x
    x = 63,838,418,965.44/401,490.40
  6. Step 6: Final answer
    x = 159,003.60

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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.