Home / 212,947.56-319,421.52-119,518.92

Finding the Fourth Proportional to 212,947.56, 319,421.52 and 119,518.92

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Solution

The fourth proportional to 212,947.56, 319,421.52 and 119,518.92 is: 179,278.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,947.56 : 319,421.52 = 119,518.92 : x
  2. Step 2: Convert to fraction form
    212,947.56/319,421.52 = 119,518.92/x
  3. Step 3: Cross multiply
    212,947.56x = 319,421.52 × 119,518.92
  4. Step 4: Simplify right side
    212,947.56x = 38,176,915,095.16
  5. Step 5: Solve for x
    x = 38,176,915,095.16/212,947.56
  6. Step 6: Final answer
    x = 179,278.48

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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.