Home / 380,464.16-525,056.32-210,698.40

Finding the Fourth Proportional to 380,464.16, 525,056.32 and 210,698.40

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Solution

The fourth proportional to 380,464.16, 525,056.32 and 210,698.40 is: 290,772.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,464.16 : 525,056.32 = 210,698.40 : x
  2. Step 2: Convert to fraction form
    380,464.16/525,056.32 = 210,698.40/x
  3. Step 3: Cross multiply
    380,464.16x = 525,056.32 × 210,698.40
  4. Step 4: Simplify right side
    380,464.16x = 110,628,526,533.89
  5. Step 5: Solve for x
    x = 110,628,526,533.89/380,464.16
  6. Step 6: Final answer
    x = 290,772.53

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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.