Home / 398,341.85-549,704.65-217,055.35

Finding the Fourth Proportional to 398,341.85, 549,704.65 and 217,055.35

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Solution

The fourth proportional to 398,341.85, 549,704.65 and 217,055.35 is: 299,532.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,341.85 : 549,704.65 = 217,055.35 : x
  2. Step 2: Convert to fraction form
    398,341.85/549,704.65 = 217,055.35/x
  3. Step 3: Cross multiply
    398,341.85x = 549,704.65 × 217,055.35
  4. Step 4: Simplify right side
    398,341.85x = 119,316,333,272.23
  5. Step 5: Solve for x
    x = 119,316,333,272.23/398,341.85
  6. Step 6: Final answer
    x = 299,532.51

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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.