Home / 217,635.39-326,445.48-89,547.06

Finding the Fourth Proportional to 217,635.39, 326,445.48 and 89,547.06

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Solution

The fourth proportional to 217,635.39, 326,445.48 and 89,547.06 is: 134,317.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,635.39 : 326,445.48 = 89,547.06 : x
  2. Step 2: Convert to fraction form
    217,635.39/326,445.48 = 89,547.06/x
  3. Step 3: Cross multiply
    217,635.39x = 326,445.48 × 89,547.06
  4. Step 4: Simplify right side
    217,635.39x = 29,232,232,984.29
  5. Step 5: Solve for x
    x = 29,232,232,984.29/217,635.39
  6. Step 6: Final answer
    x = 134,317.46

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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.