Home / 213,035.47-319,248.64-156,431.45

Finding the Fourth Proportional to 213,035.47, 319,248.64 and 156,431.45

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Solution

The fourth proportional to 213,035.47, 319,248.64 and 156,431.45 is: 234,423.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,035.47 : 319,248.64 = 156,431.45 : x
  2. Step 2: Convert to fraction form
    213,035.47/319,248.64 = 156,431.45/x
  3. Step 3: Cross multiply
    213,035.47x = 319,248.64 × 156,431.45
  4. Step 4: Simplify right side
    213,035.47x = 49,940,528,659.39
  5. Step 5: Solve for x
    x = 49,940,528,659.39/213,035.47
  6. Step 6: Final answer
    x = 234,423.54

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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.