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Finding the Fourth Proportional to 398,039.06, 549,293.93 and 216,750.93

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Solution

The fourth proportional to 398,039.06, 549,293.93 and 216,750.93 is: 299,116.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,039.06 : 549,293.93 = 216,750.93 : x
  2. Step 2: Convert to fraction form
    398,039.06/549,293.93 = 216,750.93/x
  3. Step 3: Cross multiply
    398,039.06x = 549,293.93 × 216,750.93
  4. Step 4: Simplify right side
    398,039.06x = 119,059,969,087.10
  5. Step 5: Solve for x
    x = 119,059,969,087.10/398,039.06
  6. Step 6: Final answer
    x = 299,116.30

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1.5x scale

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.