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Finding the Fourth Proportional to 380,812.58, 525,579.24 and 243,050.98

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Solution

The fourth proportional to 380,812.58, 525,579.24 and 243,050.98 is: 335,447.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,812.58 : 525,579.24 = 243,050.98 : x
  2. Step 2: Convert to fraction form
    380,812.58/525,579.24 = 243,050.98/x
  3. Step 3: Cross multiply
    380,812.58x = 525,579.24 × 243,050.98
  4. Step 4: Simplify right side
    380,812.58x = 127,742,549,349.66
  5. Step 5: Solve for x
    x = 127,742,549,349.66/380,812.58
  6. Step 6: Final answer
    x = 335,447.29

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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.