Home / 368,122.12-507,693.78-253,583.56

Finding the Fourth Proportional to 368,122.12, 507,693.78 and 253,583.56

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Solution

The fourth proportional to 368,122.12, 507,693.78 and 253,583.56 is: 349,728.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,122.12 : 507,693.78 = 253,583.56 : x
  2. Step 2: Convert to fraction form
    368,122.12/507,693.78 = 253,583.56/x
  3. Step 3: Cross multiply
    368,122.12x = 507,693.78 × 253,583.56
  4. Step 4: Simplify right side
    368,122.12x = 128,742,796,122.26
  5. Step 5: Solve for x
    x = 128,742,796,122.26/368,122.12
  6. Step 6: Final answer
    x = 349,728.50

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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.