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Finding the Fourth Proportional to 254,210.40, 350,794.80 and 139,465.80

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Solution

The fourth proportional to 254,210.40, 350,794.80 and 139,465.80 is: 192,454.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,210.40 : 350,794.80 = 139,465.80 : x
  2. Step 2: Convert to fraction form
    254,210.40/350,794.80 = 139,465.80/x
  3. Step 3: Cross multiply
    254,210.40x = 350,794.80 × 139,465.80
  4. Step 4: Simplify right side
    254,210.40x = 48,923,877,417.84
  5. Step 5: Solve for x
    x = 48,923,877,417.84/254,210.40
  6. Step 6: Final answer
    x = 192,454.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.