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Finding the Fourth Proportional to 343,072.48, 472,848.94 and 228,145.71

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Solution

The fourth proportional to 343,072.48, 472,848.94 and 228,145.71 is: 314,448.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,072.48 : 472,848.94 = 228,145.71 : x
  2. Step 2: Convert to fraction form
    343,072.48/472,848.94 = 228,145.71/x
  3. Step 3: Cross multiply
    343,072.48x = 472,848.94 × 228,145.71
  4. Step 4: Simplify right side
    343,072.48x = 107,878,457,139.05
  5. Step 5: Solve for x
    x = 107,878,457,139.05/343,072.48
  6. Step 6: Final answer
    x = 314,448.01

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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.