Home / 409,430.02-565,005.78-228,138.10

Finding the Fourth Proportional to 409,430.02, 565,005.78 and 228,138.10

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Solution

The fourth proportional to 409,430.02, 565,005.78 and 228,138.10 is: 314,826.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,430.02 : 565,005.78 = 228,138.10 : x
  2. Step 2: Convert to fraction form
    409,430.02/565,005.78 = 228,138.10/x
  3. Step 3: Cross multiply
    409,430.02x = 565,005.78 × 228,138.10
  4. Step 4: Simplify right side
    409,430.02x = 128,899,345,138.22
  5. Step 5: Solve for x
    x = 128,899,345,138.22/409,430.02
  6. Step 6: Final answer
    x = 314,826.32

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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.