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Finding the Fourth Proportional to 398,152.27, 549,570.21 and 270,901.68

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Solution

The fourth proportional to 398,152.27, 549,570.21 and 270,901.68 is: 373,926.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,152.27 : 549,570.21 = 270,901.68 : x
  2. Step 2: Convert to fraction form
    398,152.27/549,570.21 = 270,901.68/x
  3. Step 3: Cross multiply
    398,152.27x = 549,570.21 × 270,901.68
  4. Step 4: Simplify right side
    398,152.27x = 148,879,490,090.18
  5. Step 5: Solve for x
    x = 148,879,490,090.18/398,152.27
  6. Step 6: Final answer
    x = 373,926.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.