Home / 210,264.36-315,275.32-143,785.02

Finding the Fourth Proportional to 210,264.36, 315,275.32 and 143,785.02

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Solution

The fourth proportional to 210,264.36, 315,275.32 and 143,785.02 is: 215,594.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,264.36 : 315,275.32 = 143,785.02 : x
  2. Step 2: Convert to fraction form
    210,264.36/315,275.32 = 143,785.02/x
  3. Step 3: Cross multiply
    210,264.36x = 315,275.32 × 143,785.02
  4. Step 4: Simplify right side
    210,264.36x = 45,331,868,191.71
  5. Step 5: Solve for x
    x = 45,331,868,191.71/210,264.36
  6. Step 6: Final answer
    x = 215,594.64

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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.