Home / 398,346.08-549,710.46-217,059.57

Finding the Fourth Proportional to 398,346.08, 549,710.46 and 217,059.57

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Solution

The fourth proportional to 398,346.08, 549,710.46 and 217,059.57 is: 299,538.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,346.08 : 549,710.46 = 217,059.57 : x
  2. Step 2: Convert to fraction form
    398,346.08/549,710.46 = 217,059.57/x
  3. Step 3: Cross multiply
    398,346.08x = 549,710.46 × 217,059.57
  4. Step 4: Simplify right side
    398,346.08x = 119,319,916,072.10
  5. Step 5: Solve for x
    x = 119,319,916,072.10/398,346.08
  6. Step 6: Final answer
    x = 299,538.32

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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.