Home / 315,919.28-473,903.40-105,557.96

Finding the Fourth Proportional to 315,919.28, 473,903.40 and 105,557.96

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Solution

The fourth proportional to 315,919.28, 473,903.40 and 105,557.96 is: 158,345.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,919.28 : 473,903.40 = 105,557.96 : x
  2. Step 2: Convert to fraction form
    315,919.28/473,903.40 = 105,557.96/x
  3. Step 3: Cross multiply
    315,919.28x = 473,903.40 × 105,557.96
  4. Step 4: Simplify right side
    315,919.28x = 50,024,276,141.06
  5. Step 5: Solve for x
    x = 50,024,276,141.06/315,919.28
  6. Step 6: Final answer
    x = 158,345.12

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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.