Home / 397,923.60-549,140.13-216,641.01

Finding the Fourth Proportional to 397,923.60, 549,140.13 and 216,641.01

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Solution

The fourth proportional to 397,923.60, 549,140.13 and 216,641.01 is: 298,967.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,923.60 : 549,140.13 = 216,641.01 : x
  2. Step 2: Convert to fraction form
    397,923.60/549,140.13 = 216,641.01/x
  3. Step 3: Cross multiply
    397,923.60x = 549,140.13 × 216,641.01
  4. Step 4: Simplify right side
    397,923.60x = 118,966,272,394.73
  5. Step 5: Solve for x
    x = 118,966,272,394.73/397,923.60
  6. Step 6: Final answer
    x = 298,967.62

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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.