Home / 358,949.80-495,354-197,810.63

Finding the Fourth Proportional to 358,949.80, 495,354 and 197,810.63

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Solution

The fourth proportional to 358,949.80, 495,354 and 197,810.63 is: 272,980.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,949.80 : 495,354 = 197,810.63 : x
  2. Step 2: Convert to fraction form
    358,949.80/495,354 = 197,810.63/x
  3. Step 3: Cross multiply
    358,949.80x = 495,354 × 197,810.63
  4. Step 4: Simplify right side
    358,949.80x = 97,986,286,813.02
  5. Step 5: Solve for x
    x = 97,986,286,813.02/358,949.80
  6. Step 6: Final answer
    x = 272,980.47

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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.