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Finding the Fourth Proportional to 303,323.81, 455,264.96 and 153,668.21

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Solution

The fourth proportional to 303,323.81, 455,264.96 and 153,668.21 is: 230,643.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,323.81 : 455,264.96 = 153,668.21 : x
  2. Step 2: Convert to fraction form
    303,323.81/455,264.96 = 153,668.21/x
  3. Step 3: Cross multiply
    303,323.81x = 455,264.96 × 153,668.21
  4. Step 4: Simplify right side
    303,323.81x = 69,959,748,434.26
  5. Step 5: Solve for x
    x = 69,959,748,434.26/303,323.81
  6. Step 6: Final answer
    x = 230,643.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.