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Finding the Fourth Proportional to 398,208.52, 549,527.52 and 219,360.52

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Solution

The fourth proportional to 398,208.52, 549,527.52 and 219,360.52 is: 302,717.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,208.52 : 549,527.52 = 219,360.52 : x
  2. Step 2: Convert to fraction form
    398,208.52/549,527.52 = 219,360.52/x
  3. Step 3: Cross multiply
    398,208.52x = 549,527.52 × 219,360.52
  4. Step 4: Simplify right side
    398,208.52x = 120,544,642,541.51
  5. Step 5: Solve for x
    x = 120,544,642,541.51/398,208.52
  6. Step 6: Final answer
    x = 302,717.39

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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.