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Finding the Fourth Proportional to 398,502.18, 549,888.75 and 237,334.86

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Solution

The fourth proportional to 398,502.18, 549,888.75 and 237,334.86 is: 327,495.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,502.18 : 549,888.75 = 237,334.86 : x
  2. Step 2: Convert to fraction form
    398,502.18/549,888.75 = 237,334.86/x
  3. Step 3: Cross multiply
    398,502.18x = 549,888.75 × 237,334.86
  4. Step 4: Simplify right side
    398,502.18x = 130,507,769,496.83
  5. Step 5: Solve for x
    x = 130,507,769,496.83/398,502.18
  6. Step 6: Final answer
    x = 327,495.75

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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.