Home / 402,916.18-556,027.81-219,156.23

Finding the Fourth Proportional to 402,916.18, 556,027.81 and 219,156.23

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Solution

The fourth proportional to 402,916.18, 556,027.81 and 219,156.23 is: 302,437.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,916.18 : 556,027.81 = 219,156.23 : x
  2. Step 2: Convert to fraction form
    402,916.18/556,027.81 = 219,156.23/x
  3. Step 3: Cross multiply
    402,916.18x = 556,027.81 × 219,156.23
  4. Step 4: Simplify right side
    402,916.18x = 121,856,956,108.56
  5. Step 5: Solve for x
    x = 121,856,956,108.56/402,916.18
  6. Step 6: Final answer
    x = 302,437.48

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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.