Home / 357,350.36-493,374.28-221,529.46

Finding the Fourth Proportional to 357,350.36, 493,374.28 and 221,529.46

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Solution

The fourth proportional to 357,350.36, 493,374.28 and 221,529.46 is: 305,853.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,350.36 : 493,374.28 = 221,529.46 : x
  2. Step 2: Convert to fraction form
    357,350.36/493,374.28 = 221,529.46/x
  3. Step 3: Cross multiply
    357,350.36x = 493,374.28 × 221,529.46
  4. Step 4: Simplify right side
    357,350.36x = 109,296,937,826.29
  5. Step 5: Solve for x
    x = 109,296,937,826.29/357,350.36
  6. Step 6: Final answer
    x = 305,853.72

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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.