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Finding the Fourth Proportional to 316,050.40, 436,189.68 and 180,133.20

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Solution

The fourth proportional to 316,050.40, 436,189.68 and 180,133.20 is: 248,606.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,050.40 : 436,189.68 = 180,133.20 : x
  2. Step 2: Convert to fraction form
    316,050.40/436,189.68 = 180,133.20/x
  3. Step 3: Cross multiply
    316,050.40x = 436,189.68 × 180,133.20
  4. Step 4: Simplify right side
    316,050.40x = 78,572,242,865.38
  5. Step 5: Solve for x
    x = 78,572,242,865.38/316,050.40
  6. Step 6: Final answer
    x = 248,606.69

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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.