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Finding the Fourth Proportional to 210,085.64, 315,128.30 and 62,341.64

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Solution

The fourth proportional to 210,085.64, 315,128.30 and 62,341.64 is: 93,512.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,085.64 : 315,128.30 = 62,341.64 : x
  2. Step 2: Convert to fraction form
    210,085.64/315,128.30 = 62,341.64/x
  3. Step 3: Cross multiply
    210,085.64x = 315,128.30 × 62,341.64
  4. Step 4: Simplify right side
    210,085.64x = 19,645,615,032.41
  5. Step 5: Solve for x
    x = 19,645,615,032.41/210,085.64
  6. Step 6: Final answer
    x = 93,512.41

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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.