Home / 319,437.20-478,637.40-200,896.40

Finding the Fourth Proportional to 319,437.20, 478,637.40 and 200,896.40

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Solution

The fourth proportional to 319,437.20, 478,637.40 and 200,896.40 is: 301,018.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,437.20 : 478,637.40 = 200,896.40 : x
  2. Step 2: Convert to fraction form
    319,437.20/478,637.40 = 200,896.40/x
  3. Step 3: Cross multiply
    319,437.20x = 478,637.40 × 200,896.40
  4. Step 4: Simplify right side
    319,437.20x = 96,156,530,565.36
  5. Step 5: Solve for x
    x = 96,156,530,565.36/319,437.20
  6. Step 6: Final answer
    x = 301,018.57

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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.