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Finding the Fourth Proportional to 270,646.36, 406,019.40 and 90,714.22

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Solution

The fourth proportional to 270,646.36, 406,019.40 and 90,714.22 is: 136,088.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,646.36 : 406,019.40 = 90,714.22 : x
  2. Step 2: Convert to fraction form
    270,646.36/406,019.40 = 90,714.22/x
  3. Step 3: Cross multiply
    270,646.36x = 406,019.40 × 90,714.22
  4. Step 4: Simplify right side
    270,646.36x = 36,831,733,175.87
  5. Step 5: Solve for x
    x = 36,831,733,175.87/270,646.36
  6. Step 6: Final answer
    x = 136,088.04

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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.