Home / 399,283.04-551,007.74-217,994.96

Finding the Fourth Proportional to 399,283.04, 551,007.74 and 217,994.96

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Solution

The fourth proportional to 399,283.04, 551,007.74 and 217,994.96 is: 300,831.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,283.04 : 551,007.74 = 217,994.96 : x
  2. Step 2: Convert to fraction form
    399,283.04/551,007.74 = 217,994.96/x
  3. Step 3: Cross multiply
    399,283.04x = 551,007.74 × 217,994.96
  4. Step 4: Simplify right side
    399,283.04x = 120,116,908,030.94
  5. Step 5: Solve for x
    x = 120,116,908,030.94/399,283.04
  6. Step 6: Final answer
    x = 300,831.48

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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.