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Finding the Fourth Proportional to 359,365.64, 495,859.38 and 223,435.40

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Solution

The fourth proportional to 359,365.64, 495,859.38 and 223,435.40 is: 308,300.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,365.64 : 495,859.38 = 223,435.40 : x
  2. Step 2: Convert to fraction form
    359,365.64/495,859.38 = 223,435.40/x
  3. Step 3: Cross multiply
    359,365.64x = 495,859.38 × 223,435.40
  4. Step 4: Simplify right side
    359,365.64x = 110,792,538,914.05
  5. Step 5: Solve for x
    x = 110,792,538,914.05/359,365.64
  6. Step 6: Final answer
    x = 308,300.31

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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.