Home / 384,911.02-531,155.76-212,818.66

Finding the Fourth Proportional to 384,911.02, 531,155.76 and 212,818.66

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Solution

The fourth proportional to 384,911.02, 531,155.76 and 212,818.66 is: 293,677.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,911.02 : 531,155.76 = 212,818.66 : x
  2. Step 2: Convert to fraction form
    384,911.02/531,155.76 = 212,818.66/x
  3. Step 3: Cross multiply
    384,911.02x = 531,155.76 × 212,818.66
  4. Step 4: Simplify right side
    384,911.02x = 113,039,854,968.52
  5. Step 5: Solve for x
    x = 113,039,854,968.52/384,911.02
  6. Step 6: Final answer
    x = 293,677.89

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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.