Home / 472,021.84-651,387.56-257,161.36

Finding the Fourth Proportional to 472,021.84, 651,387.56 and 257,161.36

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Solution

The fourth proportional to 472,021.84, 651,387.56 and 257,161.36 is: 354,881.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,021.84 : 651,387.56 = 257,161.36 : x
  2. Step 2: Convert to fraction form
    472,021.84/651,387.56 = 257,161.36/x
  3. Step 3: Cross multiply
    472,021.84x = 651,387.56 × 257,161.36
  4. Step 4: Simplify right side
    472,021.84x = 167,511,710,816.68
  5. Step 5: Solve for x
    x = 167,511,710,816.68/472,021.84
  6. Step 6: Final answer
    x = 354,881.27

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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.