Home / 358,998.04-495,501.72-223,134.60

Finding the Fourth Proportional to 358,998.04, 495,501.72 and 223,134.60

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Solution

The fourth proportional to 358,998.04, 495,501.72 and 223,134.60 is: 307,978.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,998.04 : 495,501.72 = 223,134.60 : x
  2. Step 2: Convert to fraction form
    358,998.04/495,501.72 = 223,134.60/x
  3. Step 3: Cross multiply
    358,998.04x = 495,501.72 × 223,134.60
  4. Step 4: Simplify right side
    358,998.04x = 110,563,578,091.51
  5. Step 5: Solve for x
    x = 110,563,578,091.51/358,998.04
  6. Step 6: Final answer
    x = 307,978.22

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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.