Home / 215,666.91-323,008.29-190,440

Finding the Fourth Proportional to 215,666.91, 323,008.29 and 190,440

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Solution

The fourth proportional to 215,666.91, 323,008.29 and 190,440 is: 285,225.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,666.91 : 323,008.29 = 190,440 : x
  2. Step 2: Convert to fraction form
    215,666.91/323,008.29 = 190,440/x
  3. Step 3: Cross multiply
    215,666.91x = 323,008.29 × 190,440
  4. Step 4: Simplify right side
    215,666.91x = 61,513,698,747.60
  5. Step 5: Solve for x
    x = 61,513,698,747.60/215,666.91
  6. Step 6: Final answer
    x = 285,225.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.