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Finding the Fourth Proportional to 289,300.88, 399,259.29 and 168,434.94

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Solution

The fourth proportional to 289,300.88, 399,259.29 and 168,434.94 is: 232,454.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,300.88 : 399,259.29 = 168,434.94 : x
  2. Step 2: Convert to fraction form
    289,300.88/399,259.29 = 168,434.94/x
  3. Step 3: Cross multiply
    289,300.88x = 399,259.29 × 168,434.94
  4. Step 4: Simplify right side
    289,300.88x = 67,249,216,684.45
  5. Step 5: Solve for x
    x = 67,249,216,684.45/289,300.88
  6. Step 6: Final answer
    x = 232,454.24

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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.