Home / 212,933.02-319,621.07-156,836.47

Finding the Fourth Proportional to 212,933.02, 319,621.07 and 156,836.47

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Solution

The fourth proportional to 212,933.02, 319,621.07 and 156,836.47 is: 235,417.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,933.02 : 319,621.07 = 156,836.47 : x
  2. Step 2: Convert to fraction form
    212,933.02/319,621.07 = 156,836.47/x
  3. Step 3: Cross multiply
    212,933.02x = 319,621.07 × 156,836.47
  4. Step 4: Simplify right side
    212,933.02x = 50,128,240,356.42
  5. Step 5: Solve for x
    x = 50,128,240,356.42/212,933.02
  6. Step 6: Final answer
    x = 235,417.88

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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.