Home / 256,730.02-354,283.05-142,008.57

Finding the Fourth Proportional to 256,730.02, 354,283.05 and 142,008.57

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Solution

The fourth proportional to 256,730.02, 354,283.05 and 142,008.57 is: 195,969.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,730.02 : 354,283.05 = 142,008.57 : x
  2. Step 2: Convert to fraction form
    256,730.02/354,283.05 = 142,008.57/x
  3. Step 3: Cross multiply
    256,730.02x = 354,283.05 × 142,008.57
  4. Step 4: Simplify right side
    256,730.02x = 50,311,229,020.53
  5. Step 5: Solve for x
    x = 50,311,229,020.53/256,730.02
  6. Step 6: Final answer
    x = 195,969.41

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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.