Home / 400,816.36-553,127.12-217,055.24

Finding the Fourth Proportional to 400,816.36, 553,127.12 and 217,055.24

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Solution

The fourth proportional to 400,816.36, 553,127.12 and 217,055.24 is: 299,536.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,816.36 : 553,127.12 = 217,055.24 : x
  2. Step 2: Convert to fraction form
    400,816.36/553,127.12 = 217,055.24/x
  3. Step 3: Cross multiply
    400,816.36x = 553,127.12 × 217,055.24
  4. Step 4: Simplify right side
    400,816.36x = 120,059,139,782.11
  5. Step 5: Solve for x
    x = 120,059,139,782.11/400,816.36
  6. Step 6: Final answer
    x = 299,536.53

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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.