Home / 224,214.93-309,416.45-128,727.45

Finding the Fourth Proportional to 224,214.93, 309,416.45 and 128,727.45

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Solution

The fourth proportional to 224,214.93, 309,416.45 and 128,727.45 is: 177,643.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,214.93 : 309,416.45 = 128,727.45 : x
  2. Step 2: Convert to fraction form
    224,214.93/309,416.45 = 128,727.45/x
  3. Step 3: Cross multiply
    224,214.93x = 309,416.45 × 128,727.45
  4. Step 4: Simplify right side
    224,214.93x = 39,830,389,952.92
  5. Step 5: Solve for x
    x = 39,830,389,952.92/224,214.93
  6. Step 6: Final answer
    x = 177,643.79

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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.