Home / 358,999.04-495,503.10-223,135.60

Finding the Fourth Proportional to 358,999.04, 495,503.10 and 223,135.60

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Solution

The fourth proportional to 358,999.04, 495,503.10 and 223,135.60 is: 307,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,999.04 : 495,503.10 = 223,135.60 : x
  2. Step 2: Convert to fraction form
    358,999.04/495,503.10 = 223,135.60/x
  3. Step 3: Cross multiply
    358,999.04x = 495,503.10 × 223,135.60
  4. Step 4: Simplify right side
    358,999.04x = 110,564,381,520.36
  5. Step 5: Solve for x
    x = 110,564,381,520.36/358,999.04
  6. Step 6: Final answer
    x = 307,979.60

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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.