Home / 387,027.15-534,176.08-223,690.60

Finding the Fourth Proportional to 387,027.15, 534,176.08 and 223,690.60

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Solution

The fourth proportional to 387,027.15, 534,176.08 and 223,690.60 is: 308,738.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,027.15 : 534,176.08 = 223,690.60 : x
  2. Step 2: Convert to fraction form
    387,027.15/534,176.08 = 223,690.60/x
  3. Step 3: Cross multiply
    387,027.15x = 534,176.08 × 223,690.60
  4. Step 4: Simplify right side
    387,027.15x = 119,490,167,840.85
  5. Step 5: Solve for x
    x = 119,490,167,840.85/387,027.15
  6. Step 6: Final answer
    x = 308,738.46

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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.