Home / 312,690.30-431,515.26-183,595.20

Finding the Fourth Proportional to 312,690.30, 431,515.26 and 183,595.20

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Solution

The fourth proportional to 312,690.30, 431,515.26 and 183,595.20 is: 253,362.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,690.30 : 431,515.26 = 183,595.20 : x
  2. Step 2: Convert to fraction form
    312,690.30/431,515.26 = 183,595.20/x
  3. Step 3: Cross multiply
    312,690.30x = 431,515.26 × 183,595.20
  4. Step 4: Simplify right side
    312,690.30x = 79,224,130,462.75
  5. Step 5: Solve for x
    x = 79,224,130,462.75/312,690.30
  6. Step 6: Final answer
    x = 253,362.93

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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.