Home / 346,055.80-518,099.55-266,667.70

Finding the Fourth Proportional to 346,055.80, 518,099.55 and 266,667.70

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Solution

The fourth proportional to 346,055.80, 518,099.55 and 266,667.70 is: 399,243.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,055.80 : 518,099.55 = 266,667.70 : x
  2. Step 2: Convert to fraction form
    346,055.80/518,099.55 = 266,667.70/x
  3. Step 3: Cross multiply
    346,055.80x = 518,099.55 × 266,667.70
  4. Step 4: Simplify right side
    346,055.80x = 138,160,415,369.54
  5. Step 5: Solve for x
    x = 138,160,415,369.54/346,055.80
  6. Step 6: Final answer
    x = 399,243.17

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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.