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Finding the Fourth Proportional to 357,430.60, 535,368.30 and 216,944.20

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Solution

The fourth proportional to 357,430.60, 535,368.30 and 216,944.20 is: 324,944.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,430.60 : 535,368.30 = 216,944.20 : x
  2. Step 2: Convert to fraction form
    357,430.60/535,368.30 = 216,944.20/x
  3. Step 3: Cross multiply
    357,430.60x = 535,368.30 × 216,944.20
  4. Step 4: Simplify right side
    357,430.60x = 116,145,047,548.86
  5. Step 5: Solve for x
    x = 116,145,047,548.86/357,430.60
  6. Step 6: Final answer
    x = 324,944.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.