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Finding the Fourth Proportional to 398,223.07, 549,541.48 and 216,937.17

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Solution

The fourth proportional to 398,223.07, 549,541.48 and 216,937.17 is: 299,369.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,223.07 : 549,541.48 = 216,937.17 : x
  2. Step 2: Convert to fraction form
    398,223.07/549,541.48 = 216,937.17/x
  3. Step 3: Cross multiply
    398,223.07x = 549,541.48 × 216,937.17
  4. Step 4: Simplify right side
    398,223.07x = 119,215,973,468.81
  5. Step 5: Solve for x
    x = 119,215,973,468.81/398,223.07
  6. Step 6: Final answer
    x = 299,369.83

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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.