Home / 340,678.89-470,032.80-197,411.25

Finding the Fourth Proportional to 340,678.89, 470,032.80 and 197,411.25

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Solution

The fourth proportional to 340,678.89, 470,032.80 and 197,411.25 is: 272,367.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,678.89 : 470,032.80 = 197,411.25 : x
  2. Step 2: Convert to fraction form
    340,678.89/470,032.80 = 197,411.25/x
  3. Step 3: Cross multiply
    340,678.89x = 470,032.80 × 197,411.25
  4. Step 4: Simplify right side
    340,678.89x = 92,789,762,589
  5. Step 5: Solve for x
    x = 92,789,762,589/340,678.89
  6. Step 6: Final answer
    x = 272,367.22

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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.