Home / 378,928.08-522,925.02-209,162.16

Finding the Fourth Proportional to 378,928.08, 522,925.02 and 209,162.16

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Solution

The fourth proportional to 378,928.08, 522,925.02 and 209,162.16 is: 288,646.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,928.08 : 522,925.02 = 209,162.16 : x
  2. Step 2: Convert to fraction form
    378,928.08/522,925.02 = 209,162.16/x
  3. Step 3: Cross multiply
    378,928.08x = 522,925.02 × 209,162.16
  4. Step 4: Simplify right side
    378,928.08x = 109,376,126,701.24
  5. Step 5: Solve for x
    x = 109,376,126,701.24/378,928.08
  6. Step 6: Final answer
    x = 288,646.14

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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.