Home / 468,038.79-645,893.09-253,178.36

Finding the Fourth Proportional to 468,038.79, 645,893.09 and 253,178.36

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Solution

The fourth proportional to 468,038.79, 645,893.09 and 253,178.36 is: 349,385.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,038.79 : 645,893.09 = 253,178.36 : x
  2. Step 2: Convert to fraction form
    468,038.79/645,893.09 = 253,178.36/x
  3. Step 3: Cross multiply
    468,038.79x = 645,893.09 × 253,178.36
  4. Step 4: Simplify right side
    468,038.79x = 163,526,152,137.69
  5. Step 5: Solve for x
    x = 163,526,152,137.69/468,038.79
  6. Step 6: Final answer
    x = 349,385.90

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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.