Home / 211,130.40-316,749.60-148,922.40

Finding the Fourth Proportional to 211,130.40, 316,749.60 and 148,922.40

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Solution

The fourth proportional to 211,130.40, 316,749.60 and 148,922.40 is: 223,421.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,130.40 : 316,749.60 = 148,922.40 : x
  2. Step 2: Convert to fraction form
    211,130.40/316,749.60 = 148,922.40/x
  3. Step 3: Cross multiply
    211,130.40x = 316,749.60 × 148,922.40
  4. Step 4: Simplify right side
    211,130.40x = 47,171,110,631.04
  5. Step 5: Solve for x
    x = 47,171,110,631.04/211,130.40
  6. Step 6: Final answer
    x = 223,421.69

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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.