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Finding the Fourth Proportional to 395,594.16, 545,975.64 and 225,838.32

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Solution

The fourth proportional to 395,594.16, 545,975.64 and 225,838.32 is: 311,688.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,594.16 : 545,975.64 = 225,838.32 : x
  2. Step 2: Convert to fraction form
    395,594.16/545,975.64 = 225,838.32/x
  3. Step 3: Cross multiply
    395,594.16x = 545,975.64 × 225,838.32
  4. Step 4: Simplify right side
    395,594.16x = 123,302,221,298.53
  5. Step 5: Solve for x
    x = 123,302,221,298.53/395,594.16
  6. Step 6: Final answer
    x = 311,688.68

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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.