Home / 380,417.05-524,991.35-210,651.17

Finding the Fourth Proportional to 380,417.05, 524,991.35 and 210,651.17

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Solution

The fourth proportional to 380,417.05, 524,991.35 and 210,651.17 is: 290,707.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,417.05 : 524,991.35 = 210,651.17 : x
  2. Step 2: Convert to fraction form
    380,417.05/524,991.35 = 210,651.17/x
  3. Step 3: Cross multiply
    380,417.05x = 524,991.35 × 210,651.17
  4. Step 4: Simplify right side
    380,417.05x = 110,590,041,064.12
  5. Step 5: Solve for x
    x = 110,590,041,064.12/380,417.05
  6. Step 6: Final answer
    x = 290,707.38

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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.