Home / 385,433.36-578,315.48-148,942.16

Finding the Fourth Proportional to 385,433.36, 578,315.48 and 148,942.16

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Solution

The fourth proportional to 385,433.36, 578,315.48 and 148,942.16 is: 223,477.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,433.36 : 578,315.48 = 148,942.16 : x
  2. Step 2: Convert to fraction form
    385,433.36/578,315.48 = 148,942.16/x
  3. Step 3: Cross multiply
    385,433.36x = 578,315.48 × 148,942.16
  4. Step 4: Simplify right side
    385,433.36x = 86,135,556,752.64
  5. Step 5: Solve for x
    x = 86,135,556,752.64/385,433.36
  6. Step 6: Final answer
    x = 223,477.17

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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.