Home / 369,276.04-509,615.78-208,137.80

Finding the Fourth Proportional to 369,276.04, 509,615.78 and 208,137.80

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Solution

The fourth proportional to 369,276.04, 509,615.78 and 208,137.80 is: 287,238.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,276.04 : 509,615.78 = 208,137.80 : x
  2. Step 2: Convert to fraction form
    369,276.04/509,615.78 = 208,137.80/x
  3. Step 3: Cross multiply
    369,276.04x = 509,615.78 × 208,137.80
  4. Step 4: Simplify right side
    369,276.04x = 106,070,307,294.48
  5. Step 5: Solve for x
    x = 106,070,307,294.48/369,276.04
  6. Step 6: Final answer
    x = 287,238.53

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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.