Home / 305,862.20-422,075.54-169,904.90

Finding the Fourth Proportional to 305,862.20, 422,075.54 and 169,904.90

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Solution

The fourth proportional to 305,862.20, 422,075.54 and 169,904.90 is: 234,460.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,862.20 : 422,075.54 = 169,904.90 : x
  2. Step 2: Convert to fraction form
    305,862.20/422,075.54 = 169,904.90/x
  3. Step 3: Cross multiply
    305,862.20x = 422,075.54 × 169,904.90
  4. Step 4: Simplify right side
    305,862.20x = 71,712,702,416.15
  5. Step 5: Solve for x
    x = 71,712,702,416.15/305,862.20
  6. Step 6: Final answer
    x = 234,460.82

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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.