Home / 397,152.48-548,075.93-215,864.31

Finding the Fourth Proportional to 397,152.48, 548,075.93 and 215,864.31

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Solution

The fourth proportional to 397,152.48, 548,075.93 and 215,864.31 is: 297,895.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,152.48 : 548,075.93 = 215,864.31 : x
  2. Step 2: Convert to fraction form
    397,152.48/548,075.93 = 215,864.31/x
  3. Step 3: Cross multiply
    397,152.48x = 548,075.93 × 215,864.31
  4. Step 4: Simplify right side
    397,152.48x = 118,310,031,377.74
  5. Step 5: Solve for x
    x = 118,310,031,377.74/397,152.48
  6. Step 6: Final answer
    x = 297,895.74

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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.