Home / 278,345.40-384,114.94-151,018.24

Finding the Fourth Proportional to 278,345.40, 384,114.94 and 151,018.24

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Solution

The fourth proportional to 278,345.40, 384,114.94 and 151,018.24 is: 208,404.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,345.40 : 384,114.94 = 151,018.24 : x
  2. Step 2: Convert to fraction form
    278,345.40/384,114.94 = 151,018.24/x
  3. Step 3: Cross multiply
    278,345.40x = 384,114.94 × 151,018.24
  4. Step 4: Simplify right side
    278,345.40x = 58,008,362,196.51
  5. Step 5: Solve for x
    x = 58,008,362,196.51/278,345.40
  6. Step 6: Final answer
    x = 208,404.24

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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.