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Finding the Fourth Proportional to 170,017.60, 255,026.40 and 139,950.40

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Solution

The fourth proportional to 170,017.60, 255,026.40 and 139,950.40 is: 209,925.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,017.60 : 255,026.40 = 139,950.40 : x
  2. Step 2: Convert to fraction form
    170,017.60/255,026.40 = 139,950.40/x
  3. Step 3: Cross multiply
    170,017.60x = 255,026.40 × 139,950.40
  4. Step 4: Simplify right side
    170,017.60x = 35,691,046,690.56
  5. Step 5: Solve for x
    x = 35,691,046,690.56/170,017.60
  6. Step 6: Final answer
    x = 209,925.60

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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.