Home / 399,730.82-551,868.81-249,031.94

Finding the Fourth Proportional to 399,730.82, 551,868.81 and 249,031.94

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Solution

The fourth proportional to 399,730.82, 551,868.81 and 249,031.94 is: 343,813.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,730.82 : 551,868.81 = 249,031.94 : x
  2. Step 2: Convert to fraction form
    399,730.82/551,868.81 = 249,031.94/x
  3. Step 3: Cross multiply
    399,730.82x = 551,868.81 × 249,031.94
  4. Step 4: Simplify right side
    399,730.82x = 137,432,960,379.79
  5. Step 5: Solve for x
    x = 137,432,960,379.79/399,730.82
  6. Step 6: Final answer
    x = 343,813.77

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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.