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Finding the Fourth Proportional to 395,688.15, 546,059.81 and 242,810.81

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Solution

The fourth proportional to 395,688.15, 546,059.81 and 242,810.81 is: 335,085.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,688.15 : 546,059.81 = 242,810.81 : x
  2. Step 2: Convert to fraction form
    395,688.15/546,059.81 = 242,810.81/x
  3. Step 3: Cross multiply
    395,688.15x = 546,059.81 × 242,810.81
  4. Step 4: Simplify right side
    395,688.15x = 132,589,224,774.55
  5. Step 5: Solve for x
    x = 132,589,224,774.55/395,688.15
  6. Step 6: Final answer
    x = 335,085.16

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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.