Home / 388,210.40-535,534.08-226,960.32

Finding the Fourth Proportional to 388,210.40, 535,534.08 and 226,960.32

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Solution

The fourth proportional to 388,210.40, 535,534.08 and 226,960.32 is: 313,090.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,210.40 : 535,534.08 = 226,960.32 : x
  2. Step 2: Convert to fraction form
    388,210.40/535,534.08 = 226,960.32/x
  3. Step 3: Cross multiply
    388,210.40x = 535,534.08 × 226,960.32
  4. Step 4: Simplify right side
    388,210.40x = 121,544,986,167.71
  5. Step 5: Solve for x
    x = 121,544,986,167.71/388,210.40
  6. Step 6: Final answer
    x = 313,090.49

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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.