Home / 256,148.24-384,212.28-78,646.16

Finding the Fourth Proportional to 256,148.24, 384,212.28 and 78,646.16

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Solution

The fourth proportional to 256,148.24, 384,212.28 and 78,646.16 is: 117,966.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,148.24 : 384,212.28 = 78,646.16 : x
  2. Step 2: Convert to fraction form
    256,148.24/384,212.28 = 78,646.16/x
  3. Step 3: Cross multiply
    256,148.24x = 384,212.28 × 78,646.16
  4. Step 4: Simplify right side
    256,148.24x = 30,216,820,446.84
  5. Step 5: Solve for x
    x = 30,216,820,446.84/256,148.24
  6. Step 6: Final answer
    x = 117,966.15

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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.