Home / 355,026.65-489,955.13-217,162.35

Finding the Fourth Proportional to 355,026.65, 489,955.13 and 217,162.35

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Solution

The fourth proportional to 355,026.65, 489,955.13 and 217,162.35 is: 299,695.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,026.65 : 489,955.13 = 217,162.35 : x
  2. Step 2: Convert to fraction form
    355,026.65/489,955.13 = 217,162.35/x
  3. Step 3: Cross multiply
    355,026.65x = 489,955.13 × 217,162.35
  4. Step 4: Simplify right side
    355,026.65x = 106,399,807,153.90
  5. Step 5: Solve for x
    x = 106,399,807,153.90/355,026.65
  6. Step 6: Final answer
    x = 299,695.27

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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.