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Finding the Fourth Proportional to 248,417.72, 372,632.71 and 90,646.14

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Solution

The fourth proportional to 248,417.72, 372,632.71 and 90,646.14 is: 135,971.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,417.72 : 372,632.71 = 90,646.14 : x
  2. Step 2: Convert to fraction form
    248,417.72/372,632.71 = 90,646.14/x
  3. Step 3: Cross multiply
    248,417.72x = 372,632.71 × 90,646.14
  4. Step 4: Simplify right side
    248,417.72x = 33,777,716,799.24
  5. Step 5: Solve for x
    x = 33,777,716,799.24/248,417.72
  6. Step 6: Final answer
    x = 135,971.45

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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.