Home / 210,421.36-315,653.10-60,665.32

Finding the Fourth Proportional to 210,421.36, 315,653.10 and 60,665.32

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Solution

The fourth proportional to 210,421.36, 315,653.10 and 60,665.32 is: 91,004.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,421.36 : 315,653.10 = 60,665.32 : x
  2. Step 2: Convert to fraction form
    210,421.36/315,653.10 = 60,665.32/x
  3. Step 3: Cross multiply
    210,421.36x = 315,653.10 × 60,665.32
  4. Step 4: Simplify right side
    210,421.36x = 19,149,196,320.49
  5. Step 5: Solve for x
    x = 19,149,196,320.49/210,421.36
  6. Step 6: Final answer
    x = 91,004.05

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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.