Home / 256,537.32-384,812.55-121,569.72

Finding the Fourth Proportional to 256,537.32, 384,812.55 and 121,569.72

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Solution

The fourth proportional to 256,537.32, 384,812.55 and 121,569.72 is: 182,357.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,537.32 : 384,812.55 = 121,569.72 : x
  2. Step 2: Convert to fraction form
    256,537.32/384,812.55 = 121,569.72/x
  3. Step 3: Cross multiply
    256,537.32x = 384,812.55 × 121,569.72
  4. Step 4: Simplify right side
    256,537.32x = 46,781,553,955.99
  5. Step 5: Solve for x
    x = 46,781,553,955.99/256,537.32
  6. Step 6: Final answer
    x = 182,357.69

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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.